Answer:
Ginkgophyta
Explanation:
Gymnosperms are seed-producing plants with six phyla: Cycadophyta, Ginkgophyta, Gnetophyta, Pinophyta (Coniferophyta), Pteridospermales and Cordaitales.
Ginkgophyta is a phylum with a single living species-Ginkgo biloba.
Pteridospermales and Cordaitales phyla are now extinct.
Pinophyta (Coniferophyta) is the largest phyla of the Gymnosperms which includes pines, cypresses and relatives.
The gymnosperms phylum which includes only one living species is:
Ginkgophyta only one type survives Ginkgo biloba.
Further explanation
Plants are divided into two, namely vascular plants and vascular plants. Examples of vascular plants are moss, whereas vascular plants consist of seedless plants, which are nails and seed plants. While seed plants themselves are divided into closed seed plants (angiosperms) and open seed plants (gymnosperms).
Seed plants are grouped into two subdivisions, namely open seed plants (Gymnosperms) and closed seed plants (Angiosperms). Gymnosperms are plants that have open seeds. They are a group of seed plants whose seeds are not protected in ovaries.
Gymnosperms consist of several divisions, both extinct and extant, which include 3 divisions that have become extinct and 4 divisions that still survive.
The first extinct Gymnosperms plants include the following which encompasses 3 extinct divisions:
- Bennetophyta
- Cordaitophyta
- Pteridospermophyta, extinct but considered to be the ancestor of Angiospermae.
The second is the Gymnosperms plant that still exists today, which includes four Gymnosperms divisions, including the following:
1) Coniferophyta or can be called Pinophyta
It is a conifers.
2) Gnetophyta
With only 3 members of the genus: Gnetum, Welwitschia, and Ephedra.
3) Cycadophyta
Cycadophyta is divided into two families, namely Cycadaceae and Zamiaceae.
4) Ginkgophyta
Only one type remains: Ginkgo biloba
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Class: High School
Subject: Biology
Keyword: Phylum of the gymnosperms.
The majority of triglyceride digestion occurs in the small intestine facilitated by the enzyme __________ ________.
Answer:
The correct answer is PANCREATIC LIPASE.
Explanation:
The three types of food eaten by man are broken down into three different components during digestion. Carbohydrate is broken down to glucose, fat and oil is broken down to fatty acid and glycerol and proteins are broken down to amino acids. Most of these digested products are absorbed at the small intestines.
The presences of triglycerides at the small intestines usually stimulates the secretion of pancreatic lipase enzyme and bile. The bile break down the fat molecule and increase its surface area so that pancreatic lipase will be able to work on it effectively. Thus, triglyceride digestion at the small intestines is facilitated by the enzyme pancreatic lipase.
Triglyceride digestion primarily occurs in the small intestine facilitated by the enzyme pancreatic lipase which breaks them down into two free fatty acids and a monoglyceride. Bile salts also support this process by emulsifying the fats.
Explanation:The majority of triglyceride digestion happens in the small intestine with the aid of the enzyme called pancreatic lipase. This enzyme is produced by the pancreas and released when food arrives in the small intestine. It then breaks down the triglycerides into two free fatty acids and a monoglyceride, which includes both short-chain (less than 10 to 12 carbons) and long-chain fatty acids. Additionally, the bile salts emulsify the fats which further facilitates this digestive process. The digestion of triglycerides is an important part of lipid metabolism.
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Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. because this light generation is an atp-requiring reaction, firefly luciferase can be used to test for the presence of atp. in this way, luciferase can test for the presence of life. the coupled reactions are
Answer:
Overall DeltaG = -6.40 kJ/mol
Delta G = 31.6 - 6.4 =25.2 KJ
T = 17 + 273.15 =290.15 K
Delta G = -RT * Ln (K)
25.2 * 10^3 J = -(8.314 J/moles*k)(290.15K) * Ln (K)
So (Delta G)/(-RT) = Ln (K)
Ln K = -10.44643114
Thus k = 2.905 *10^-5
Answer:
Luciferase is an enzyme that belongs to the oxidative enzyme set of some bioluminescence reactions. This phenomenon was discovered by Rafaël Dubois, who detected the emission of light in some living things was nothing more than an enzymatic oxidation, in which luciferase was the catalyst, and luciferin the substrate. This phenomenon was frequently detected in fireflies and in the Pholas dactylus mollusk, and later in Cnidarians (Renilla reniformis), marine copepods (Gaussia princeps), abyssal molluscs (Oplophorus gracilirostris), bacteria, etc.
Explanation:
The biological role of luciferase lies in its quality as a catalyst for some types of bioluminescence. Bioluminescence is a type of chemiluminescence, it consists of the oxidation of luciferin, a luminescent substance, catalyzed by luciferase. Said reaction begins with luciferin whose carboxylic group reacts with the phosphate group of ATP, forming luciferyl adenylate. This molecule is oxidized (a process catalyzed by luciferase), resulting in an intermediate peroxide (luciferase-luciferin-AMP-O2 complex) which, upon releasing a molecule of carbon dioxide, results in a ketoderivative, the oxyluciferin, which is excited, returning to its normal state by releasing a photon of light:
Luciferin + O2 → Peroxidic intermediary (luciferase-luciferin-AMP-O2 complex) → [oxyluciferin] → oxyluciferin → light
What animal is called the ship of the desert
Answer: the camel
Explanation:
because of its adaptation to the desert
Kathy is a big fan of horror movies. Although she was initially too afraid to watch them alone, she soon found that she could not get enough of them. Kathy began to watch television shows that were more violent as well. Which of the following effects is most likely responsible for Kathy’s behavior? A. aggressor effect B. victim effect C. appetite effect D. hostile expectation bias
Agree with snzzyninja (C.) Appetite effect.
Answer:
appetite effect
Explanation:
Edge
How does pH affect enzyme activity? Use the enzymes pepsin and trypsin as examples.
Answer:
The change in PH not only effect the shape of enzymes, but it may also change properties the of substrate so that that substrate cannot control to bind the active site and it cannot undergo catalysis.
In general enzymes have a PH optimum. However this optimum is not same for each enzyme.
Explanation:
For Example; The enzyme pepsin is most active at an acidic PH, Whereas the enzyme trypsin performs best at slightly alkaline PH. the increase or decrease in PH can change the concentration of ion in a solution
Atp and gtp are primary sources of energy for biochemical reactions. (a) describe the structure of the atp or the gtp molecule. (b) explain how chemiosmosis produces atp. (c) describe two specific cell processes that require atp and explain how atp is used in each process. (d) an energy pyramid for a marine ecosystem with four levels. bottom to top 1-4. label each trophic level of the pyramid and provide an example of a marine organism found at each level of this pyramid. explain why the energy available at the top layer of the p
a
Answer:
structure of ATP
The ATP molecule is composed of three components.
The center holds a sugar molecule known as ribose which is the same sugar that forms the basis of RNA.
One side of the sugar has an attachment of a string of phosphate groups which are key to the activity of ATP.
The other side has a base attached to it. This is a group consisting of linked rings of carbon and nitrogen atoms.
The base is adenine.
b
Answer:
During chemiosmosis, a concentration gradient of hydrogen ions is generated between the matrix of the mitochondria and the inter-membrane space.
This gradient is generated because hydrogen ions move from the matrix to the inter membrane space using the energy released by the electrons as they travel through the electron transport chain.
Hydrogen ions diffuse from the inter-membrane space of the mitochondrion to the matrix, through the ATP synthase in the inner mitochondrial membrane.
This diffusion happens due to the above mentioned concentration gradient of hydrogen ions formed between the matrix of the mitochondria and the inter-membrane space.
Kinetic energy released during the movement of hydrogen ions by diffusion is used to phosphorylate ADP, to produce ATP.
c
Answer:
Active Transport
There are four different types of proteins found in cell membranes that can transport molecules across the membrane known as P-class pumps.
In order for active transport to occur, you need ATP.
Such specific pumps include:
sodium-potassium pumpscalcium pumps.Molecular ions will bind to the main site on the protein, and then an ATP will bind to a secondary site in order for movement into and out of the cell. If there is no ATP, then the molecular ions can not go where they are needed.
Anabolic Reactions
Anabolic reactions refer to reactions in which molecules, such as fats, lipids carbohydrates and proteins, are made.
In order to build new molecules, energy is needed to form molecular bonds.
When one of the phosphates on the triphosphate of the molecule gets cleaved off, energy that was needed to form the phosphate bond is released
Therefore, ATP turns into ADP or adenosine diphosphate.
A gene coding for __________ proteins is likely to be found in a genomic island of a pathogenic bacterial strain and not found in a nonpathogenic strain.
Answer: CAN I GET THE ANSWER CHOICES AND I MAY THINK ITS PATHOGENIC
Explanation:
A gene coding for virulence factors proteins is likely to be found in a genomic island of a pathogenic bacterial strain and not found in a nonpathogenic strain.
Genomic islands are clusters of genes that are present in some strains of a bacterial species but not others. These islands often contain genes that confer an adaptive advantage to the bacteria, such as antibiotic resistance, metabolic capabilities, or pathogenicity. In the context of pathogenic bacterial strains, genomic islands frequently carry genes that encode for virulence factors proteins that enable the bacteria to cause disease in a host organism.
Virulence factors can include a variety of proteins, such as adhesins, which help bacteria attach to host cells; toxins, which can damage host tissues; and enzymes that may help the bacteria evade the host's immune response. The presence of these genes in a pathogenic strain and their absence in a nonpathogenic strain suggests that they play a role in the ability of the pathogenic strain to cause disease.
Therefore, when comparing pathogenic and nonpathogenic strains of bacteria, one would expect to find genes coding for virulence factors in the genomic islands of the pathogenic strain, as these proteins contribute to its ability to infect and harm a host.
This is formed as a waste product in photosynthesis and used as a reactant in respiration.
Answer:
Oxygen
Explanation:
Photosynthesis is a process performed by the plants (also some algae and bacteria) in which the energy of sunlight is transformed into chemical energy usable by those plants. Necessary components of this set of reactions are sunlight, water and CO2, while resulting products are glucose and oxygen. Products of photosynthesis are then used in the metabolic processes known as cellular respiration. During the cellular respiration, glucose and oxygen are used for the production of ATP, CO2 and water. Cellular respiration is performed in all living organisms.
One of the known effects of acid rain is that it leaches calcium carbonate out of the soil. A study in a region that received significant amounts of acid rain showed that birds were laying eggs with highly porous shells. As a result, the bird population was declining. What is the MOST LIKELY cause of the observed quality of egg shells? A) Acid rain leaches out the calcium that is the most significant component of egg shells. B) The birds are unable to get calcium from the soil because the calcium has been leached out by the acid rain. C) The birds are unable to get calcium from the soil because the calcium has been consumed by the snails to secrete their shells. D) Calcium deficiency was caused because snails in the birds’ diets are unable to get enough calcium to secrete their shells.
Answer:
B) The birds are unable to get calcium from the soil because the calcium has been leached out by the acid rain
Explanation;
Calcium is needed by birds in large quantities for the development off the egg shell production and for healthy growth of newborn chicksCalcium cannot be stored in the skeleton of the birds since it would make them too heavy and can easily be attacked by predators.Therefore the birds have to get calcium directly from its source and eat it. Lack of calcium in the soil lead to lack of a source of calcium for the birds thus their eggs might end up failing to hatch due to the small holes on its shell and once there is air in the egg shell no hatching can take place leading to decline in population.
Answer:
I agree, the answer is B
Explanation:
One difference between prokaryotes and eukaryotes is that
Prokaryotes: Single-called with no membrane-bound organelles nor nucleus (bacteria; they have nucleoid).
Eukaryotes: Multicellular with membrane-bound organelles and a nucleus (you and me; we have nucleus)
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Bacteria and fungi feed on a dead log.These organisms act as decomposers by breaking
down the matter in the log and returning
vital nutrients to the ecosystem.Which of
the following terms describes the role of the bacteria and fungi in the environment?
A.) producer
B.) habitat
C.) niche
D.)community
Answer:B habitat
Explanation:
Suppose you observed 240 progeny that resulted from a monohybrid cross and involved genes that obeyed Mendelian inheritance, how many heterozygous progeny would you expect to observe?
Answer:
120
Explanation:
If there is a monohybrid cross that involved genes that obeyed Mendelian inheritance this means that parental generation includes two true breed parents (both homozygous but with different genotype).
If we name the gene with A:
P: AA x aa
F1: Aa Aa Aa Aa
F2: AA Aa Aa aa
Half of them will be heterozygous, it means 120.
Carol and Joseph have freckles and curly red hair. All of their children, except one, also have freckles and curly red hair. Their son, Sam, has the same curly red hair but not one freckle! How can a child get a chromosome that is totally different from the original chromosomes of both parents? A) gene flow B) genetic drift C) crossing over D) natural selection
Answer:
Crossing Over
Explanation:
The exchange of homologous chromosomes.
Answer:
C) crossing over
Explanation:
A child can get a chromosome that is totally different from the original chromosomes of both parents through crossing over. During crossing over DNA lengths are swapped between chromosomes. This exchange produces a chromosome that has a different composition from the original two chromosomes.
Where does the energy for human metabolism come from
Answer:
From food
Explanation:
Food energy is a chemical energy used by humans through the process of cellular respiration. Food contain macromolecules such as lipids, proteins, carbohydrates, water, vitamins, and minerals that are necessary for the human metabolism and they are broken down and used by the series of metabolic steps (glycolysis, Krebs cycle, electront transport chain and oxidative phosphorilation). Digested macromolecules should be used either as a source of energy or as building blocks for the cell.
At the end of catabolic processes within an organism food energy is transformed into energy usable by the cell-ATP.
Which of the following molecules are involved in pattern formation during development?
A) transcription factors
B) cAMP
C) cytoplasmic determinants
D) miRNAs
Answer:
C) cytoplasmic determinants
Explanation:
Cytoplasmic determinants are special molecules which play a very important role during oocyte maturation, in the female's ovary.
Answer:
The correct answer is - C)
Explanation:
Pattern formation is the development process by which cells are move to acquire different fates and identities depending on their positions inside the embryo. Cytoplasmic determinants are the molecules that help in determining in pattern formation during development.
These molecules decides and ensures the organs and tissues develop in the correct place and orientation.
Thus, the correct answer is C)
What are the conditions required to maintain allele frequency in a population?
Answer:
A large population No change in allelic frequency due to evolutionary mechanisms (mutation, natural selection, gene flow, genetic drift)Random matingExplanation:
According to Hardy-Weinberg Law, allele frequencies of the population will remain constant through the generation if a population is large, without evolutionary mechanisms acting on it (mutation, natural selection, gene flow, genetic drift), if mating is random. In other words, population is equilibrium (Hardy-Weinberg equilibrium).
Allele frequency describes how often an allele appears in a population. This measure is usually expressed in percentage. Allele frequency can describe the variation that exist within the population. It can be calculated as the number of alleles divided with the total number of gene copies in that population.
Change in allele frequencies over a certain short period of time is defined as microevolution. Mechanisms of evolution that can change allele frequencies through time are mutations, natural selection, genetic drift and gene flow (migrations).
Select all that apply.
Select the true statements about Eubacteria.
A.) Most live as decomposers and heterotrophs.
B.) Most only thrive in a narrow range of environments.
C.) Certain Eubacteria are responsible for food poisoning.
D.) Eubacteria thrive in extreme environments.
The true statements about Eubacteria are:
A.) Most live as decomposers and heterotrophs.
C.) Certain Eubacteria are responsible for food poisoning.
D.) Eubacteria thrive in extreme environments.
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Help design a species
Answer:
just combine traits of ur two favortie animals and put it into a punnett square :)
Explanation:
Answer:
Basically explain about how would two different kind of species would react such as an mouse and a hedgehog. Would a offspring mouse/ hedgeho have quills on its back or would it have ever a tail.
Explanation:
A pod of bottlenose dolphins is showing signs of stress in the Gulf of Mexico. Why would it be important for scientists to study the age structure of the pod?
Answer: Age structure would help scientists determine if the problem exists with young or old dolphins. A.
Explanation:
took the test
Which of the following is the most common type of hydrolysis damage in the cell?A. deamination of thymidineB. breakage of the glycosidic linkage between the pyrimidines and the DNA backboneC. removal of cytosine from the DNA backbone to create an abasic siteD. deamination of cytosine to uracilE. None of the damage types given is known to occur in cells.
Answer:
D. deamination of cytosine to uracil
Explanation:
Hydrolytic DNA damage is usually a consequence of metabolic reactions and the most common example of this type of damage is hydrolysis of cytosine into uracil with the release of ammonia. This damage can be fixed by the cell's DNA repair system:removal of uracil by an enzyme uracil-DNA glycosylase and consequently generation of an abasic (AP) site. AP endonucleases recognise AP site and break a phosphodiester bond so that lesion can be replaced with another cytosine.
Final answer:
The depurination process, which removes guanine or adenine from deoxyribose in DNA, is the most common hydrolysis damage in cells, occurring more frequently than deamination of cytosine to uracil.
Explanation:
The most common type of hydrolysis damage in a cell is depurination, which is the spontaneous hydrolytic removal of guanine or adenine from deoxyribose C#1 in a DNA strand. This occurs at a rate of about 5000 instances per cell per day. This type of damage is more frequent than the deamination of cytosine to uracil, which occurs at an estimated 100 instances per cell per day. However, deamination of cytosine is one of the most consequential types of damage because if uncorrected, it can mutate the DNA sequence by changing a C-G pair to a T-A pair. Fortunately, cells have mechanisms to correct this form of damage through repair processes that remove the uracil and replace it with the correct cytosine.
Which of the following statements correctly describes the effect a nonsense mutation would have on a gene?a) It changes an amino acid in the encoded protein.b) It alters the reading frame of the mRNA.c) It introduces a premature stop codon into the mRNA.d) It has no effect on the amino acid sequence of the encoded protein.
C. It introduces a premature stop codon
Carbon that gets into the soil through (animal death or defecation) can get buried and eventually (after a really long time) turn into what?
A. Algae
B. Water
C. Bacteria
D. Fossil Fuels
Answer:
D
Explanation:
Crude oils, shale, and natural gas are some of the fossil fuels formed in this way. They are specially formed when vast amounts of algae die and sink to the bottom of the oceans over time and accumulate with sediments. They become buried under vast layers of sediments that apply high pressure. Over time, the high pressure and temperature turn the organic molecules into fossil fuels.
WILL GIVE BRAINLIEST
greenhouse gases trap _____.
a. carbon dioxide
b. infrared radiation
c. uv radiation
d. visible spectrum radiation
the answer is not carbon dioxide in gradpoint
B, infrared radiation
The greenhouse gas is the type of gases which adsorbs infrared radiation in thermal range and causes global warming. So, the correct option is B.
What is Greenhouse gas?A greenhouse gas is defined as a gas which absorbs and emits radiant energy within the thermal infrared range that causes the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
During the day, the sun shines through the atmosphere, heating the Earth's surface while at night, the Earth's surface cools, releasing heat back into the air, where some of the heat is trapped by greenhouse gases in the atmosphere.
Thus, the greenhouse gas is the type of gases which adsorbs infrared radiation in thermal range and causes global warming. So, the correct option is B.
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A virus cannot reproduce on its own. Viral DNA or RNA must enter the host cell and direct the cell to make the materials needed to produce more viral particles. There are two pathways a virus may take: the lytic or lysogenic pathway.
How are the lytic and lysogenic viral pathways ALIKE?
A) They both have a prolonged period of dormancy.
B) They both eventually cause the death of the host cell.
C) In both cases, viral DNA is replicated when the host cell undergoes fission.
D) In both cases, viral DNA is integrated into the host DNA for a period of time.
In both cases, viral DNA is integrated into the host DNA for a period of time
Answer:
B) They both eventually cause death of the host.
Explanation:
Viruses do not have their own energy producing system. Thus, viruses can only reproduce or replicate using host energy and reproduce by two methods. These are called the lytic cycle and the lysogenic cycle. In both the cycles, the viruses inject their genetic material into the host cell. In the lysogenic cycle, the viral DNA is integrated into the host DNA, while in the lytic cycle, the viral DNA exists as a separate free floating molecule within the host cell, and it reproduces separately from the host DNA. In both the cases the host cell die.
Kayla is learning about ecology and made a study chart.
Which headings best complete the chart?
X: Abiotic
Y: Biotic
X: Biotic
Y: Abiotic
X: Niche
Y: Habitat
X: Habitat
Y: Niche
HURRY PLEASE NO TIME TO WASTE!!!!!!
Answer:
x: Niche
y: habitat
Explanation:
x: because a niche is an action of an animal and one of the bullet points state " describes how a organism interacts with its enviorment "
y: because a habitat is a place that supports an organisms needs and the y section has the same statement.
X: Abiotic
Y: Biotic
X: Biotic
Y: Abiotic
X: Niche
Y: Habitat
X: Habitat
14. In what type of cell would meiosis occur? A. Lung cell B. Brain cell C. Blood cell D. Sex cell
Answer:
I believe it is a sex cell.
Explanation:
The meiosis process occurs in gametes or sex cells. Therefore, option D is correct.
Meiosis is a specialized type of cell division that occurs in organisms that reproduce sexually. It involves the division of a diploid (2n) cell into four haploid (n) cells, resulting in the production of gametes (sex cells) such as sperm and eggs.
Meiosis consists of two successive divisions, known as meiosis I and meiosis II. The process is characterized by specific stages, including prophase I, metaphase I, anaphase I, telophase I, and cytokinesis, followed by prophase II, metaphase II, anaphase II, telophase II, and cytokinesis.
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Despite the differences in mature plant cells, all of them are derived from meristem cells. The three major types of tissue systems develop from the meristem. Meristems develop cells in all but which tissue? A) notocord B) protoderm C) procambium D) ground meristem
Answer:
A) notocord
Explanation:
Answer:
Notochord
Explanation:
Meristem cells are a group of plant cells capable of division and growth that reside in zones where growth can occur. As undifferentiated cells, they are considered as stem cells in animals given that they are the origin of many of the cells that go on to rapidly differentiate/specialize and form various parts of plant. A collection of meristem cells performing a specific function is called meristem tissue.
Meristems are classified based on their location or position; apical meristem (at the tips), intercalary (in the middle) and lateral (at the sides). Apical meristem is further divided into:
- Protoderm (which differentiates into epidermis)
- Ground meristem ( differentiation gives rise to parenchyma, collenchyma and sclerenchyma)
- Procambium ( differentiation results in the production of vascular tissues of the plant; xylem and phloem)
Notochord is a cartilaginous skeletal rod supporting the body in all embryonic and some chordate animals. Notochords are only found in the phylum Chordata, a group of animals including humans. Hence, notochords is not a structural characteristics of plants and cannot be produced by the meristem cells in plants.
How does biodiversity support healthy ecosystems
ANSWER: Biological biodiversity refers to all the different kinds of life that are obtainable in a particular ecosystem, this include all the plants and animal populations that are found in a particular geographical area.
Biodiversity supports healthy ecosystem because it enhances the productivity and the survival of the ecosystem. For instance, in a situation where there are large number of different plant population in an ecosystem, such population will present variability in genetic make up. If a negative event occur in the ecosystem, it will be possible for some plants to survive. But, in a situation where it is only one type of plant that is obtainable in the ecosystem, it will be quite easy to wipe all of them out at once. For instance, a disease outbreak can easily destroy all the plants.
The net result of a single glycolysis run is the formation of
Answer:
2 pyruvates, 2 ATP, 2 NADH
Explanation:
Glycolysis is the process in which glucose is broken down to pyruvate in order to produce energy. It occurs in cytosol and it can be divided into two phases: phase that requires energy (two ATP molecules are used) and phase that produces energy (four ATP molecules together with two NADH are produced).
After the glycolysis, which is the first step in cellular respiration, final products (two pyruvats) are further used. The next steps are: pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation.
Name the five nitrogenous bases, and put a checkmark in the correct column for each base. also indicate if the base is found in dna (d), rna (r), or both (b).
Adenine (A), guanine (G), cytosine (C) are found both in DNA and RNA. Thymine (T) is found only in DNA and uracil (U) is found only in RNA.
Explanation:The five nitrogenous bases are adenine (A), guanine (G), cytosine (C), thymine (T), and uracil (U). Adenine and guanine are the purines, and they have a double-ring structure with a six-carbon ring fused to a five-carbon ring. Cytosine, thymine and uracil are the pyrimidines, which have only a six-carbon ring structure.
Adenine - DNA (D), RNA (R), Both (B) Guanine - DNA (D), RNA (R), Both (B) Cytosine - DNA (D), RNA (R), Both (B) Thymine - DNA (D), Not in RNA Uracil - RNA(R), Not in DNA Learn more about Nitrogenous bases here:
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