Biology

In a typical pea experiment, two true-breeding plants with distinct traits of a single character are called the __________, and the offspring are called the __________, which will always be __________.
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Which of the following statements does not apply to the immunoproteasome:A It is generated in response to interferon-gamma stimulation.B It contains the nonpolymorphic MECL1 subunit.C It contains the polymorphic LMP7 subunit.D Ten per cent of the peptides generated are 8-9 residues in length.E It exhibits both chymotrypsin-like and trypsin-like activities.
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What are the chances of a given gamete receiving your mom's chromosome #1.
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Chondroblasts ________. Select one: a. never lose their ability to divide b. within the cartilage divide and secrete new matrix c. are mature cartilage cells located in spaces called lacunae d. remain in compact bone even after the epiphyseal plate closes
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which statement correctly compares the thickness of earths layers
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Variation that results in the evolution of one species to another is called
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LII-ralliWhich statement best explains how enzymes speed up chemical reactions?Enzymes use light energy to speed up chemical reactions.Enzymes gain heat from chemical reactions.Enzymes change shape during chemical reactions.activation energy of a reaction.
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TRY ITExplain How the Organelles in a cothe Organs in Your BodyWrite a paragraph comparing the organelles in acell to the organs in your body.DONE
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A model of a specific event during meiosis is shown with various possible combinations. Which statement correctly cites evidencefrom the model to support the idea that meiosis increases genetic diversity?A- Chromosomes can coil during meiosis, creating a combination of allelesthat are new.B- Chromosomes can mutate randomly during meiosis creating newphenotypes in the daughter cells.C-Chromosomes can replicate during meiosis, producing additional DNA withwhich to pass on to the daughter cells.D-Chromosomes can align in metaphase I in multiple possible arrangementsin a process called independent assortment.
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What cavities are in the head, but are not included within the major cavities?
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By studying fossils, scientists have learned that A. neither animals nor plants have changed over time. B. animals have changed over time, but plants have not. C. both animals and plants have changed over time. D. plants have changed over time, but animals have not.
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For an animal to move in one direction, its muscles must do all of the following excepta. overcome the effects of friction.b. exert a force in the opposite direction.c. spend energy.d. overcome the effects of gravity.e. exert a force in the same direction.
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Effect of pH on the Conformation of -Helical Secondary Structures The unfolding of the helix of a poly-peptide to a randomly coiled conformation is accompanied by a large decrease in a property called specific rotation, a meas-ure of a solutions capacity to rotate circularly polarized light. Polyglutamate, a polypeptide made up of only L-Glu residues, has the -helix conformation at pH 3. When the pH is raised to 7, there is a large decrease in the specific rotation of the solu-tion. Similarly, polylysine (L-Lys residues) is an helix at pH 10, but when the pH is lowered to 7 the specific
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4. Describe the most likely direction of the prevailing winds across the Big Island of Hawaii. The most likely direction of the prevailing winds across the Big Island of Hawaii is northeast. Question you guys need to answer: 5) What is the basis for your answer to question 4 above?
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It is a model organism used to study various cell and developmental processes such as the growth of developing body parts in the right place and with the correct shape. It develops from a fertilized egg to an adult in a little over a week, and has been a favorite of geneticists for almost a century. Some of its cells have giant chromosomes whose banding patterns have been extremely helpful in classical genetic studies. Which organism is it?
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according the the article, which of the following statements regarding gene therapy is true? a: gene therapy is not a suitable medical treatment for cancer. b: gene therapy only works in cases involving diseases of the eyec: there are risks and benefits associated with gene therapy. d: all of the above
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Dendrites are A.the conduction zone of a nerve cell. B.the input zone of a nerve cell. C.a type of glial cell. D.small interneurons.
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Inspiration:Know that you will continue to succeed,if all you did today was be on this earth, that is enough, we are proud of you, and without you, the world wouldn't be the same. you were created for a reason, and there is no-one else like you or who can replace you. focus on the future and what is to come:)
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What is the phenotype ratio for this cross ?
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Which statement forms part of cell theory?
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PLEASE HELP ASAP (100 POINTS) AND OTHER STUFFRead each example and identify it with one of the mechanisms that influence gene pools.----- A zebra migrates to join a different herd of zebras.------ Competition for sunlight leads to taller trees. ------The DNA of a snake changes to make its venom stronger.------ A grassfire randomly sweeps through a population of buffalo and kills most of the animals.1.Genetic drift2.Gene flow3. Mutation4.Natural selection
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What is the name of the endocrine mode of reflex stimulation that releases hormone(s) due to direct stimulation from changing levels of nutrients or ions in the blood?
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Great thanks in a light-year told you about the distance to stars or galaxies are away from each other Thomas disagrees as he thinks it is about the mount of time you would take to travel between two places in the galaxy explain what you think their ideas about light years
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A bacteria culture starts with 200 bacteria and in 1 hour contains 400 bacteria. How many hours does it take to reach 2000 bacteria?
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