Biology Middle School

Which description best fits the activity of a cell during interphase?
Question 11 options:

The cell carries on metabolism.

The cell differentiates to have a new function.

The cell splits in two.

The cell splits in two but with half the normal number of chromosomes.

Answers

Answer 1

Answer:

The correct option is A) The cell carries on metabolism.

Explanation:

During the interphase, the cell tends to carry out its normal cell activities and it prepares itself for the cell division process during the interphase. It synthesizes proteins etc which will be required for cell division during this phase. The cell becomes enlarged during this phase. A cell tends to spend most of its time in the interphase. Hence, option A is correct.

Other options, like option C, cannot be considered to be true because the process of cell splitting does not occur during the interphase, It happens during the process of cytokinesis.

Related Questions

Dyhybrid crosses are crossed between two parents with two different heterozygous genes true or false

Answers

Answer:

The statement is False.

Explanation:

Dihybrid cross is a type of cross that occur between two different genes which differ in their traits.The cross between homozygous dominant and homozygoys recessive traits results in 1:0:0:0 phenotypic ratio. The resulting offspring will have dominant phenotype but will have carriers of recessive phenotype.

A mutation that inactivates the regulatory gene of a repressible operon in an E. coli
cell would result in
a. continuous transcription of the structural gene controlled by that regulator.
b. complete inhibition of transcription of the structural gene controlled by that
regulator
c. irreversible binding of the repressor to the operator.
d. inactivation of RNA polymerase by alteration of its active site.
e. continuous translation of the mRNA because of alteration of its structure.
Question

Answers

Final answer:

A mutation inactivating the regulatory gene of a repressible operon leads to uninterrupted transcription of the regulated structural genes, due to the repressor protein no longer being able to inhibit RNA polymerase.

Explanation:

A mutation that inactivates the regulatory gene of a repressible operon in an E. coli cell would result in continuous transcription of the structural gene controlled by that regulator. This is because the repressor protein, which is coded by the regulatory gene, can no longer bind to the operator. This unbound state leaves the RNA polymerase able to bind to the promoter freely and thus transcribe the structural genes without interruption.

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