Question

In which of the following instances can the state of chromatin packing differ? Explain your reasoning. A. Between different cells of the same organism. B. In different stages of the cell cycle. C. In different parts of the same chromosome. D. In different members of a pair of homologous chromosomes.

Answer 1

Chromatin packing can differ in different cells, stages of the cell cycle, parts of the same chromosome, and homologous chromosomes.

Step-by-step explanation:

Chromatin packing can differ in the following instances:

1. Between different cells of the same organism: Different cells may have different chromatin packing patterns, leading to different gene expression profiles and cell functionality.
2. In different stages of the cell cycle: During interphase, chromatin exists in different packing forms, with euchromatin being less condensed and heterochromatin being highly condensed.
3. In different parts of the same chromosome: Chromatin packing can vary along a single chromosome, allowing for differential gene expression.
4. In different members of a pair of homologous chromosomes: Chromatin packing can differ between homologous chromosomes, leading to variations in gene expression between individuals.