11. Cell Division

A collection of DNA and associated proteins in a cell defines the term:

a) Sister Chromatids.

b) Centromere.

c) Chromatin.

d) Chromosome.

Choose the option that correctly lists the following genetic material in a dividing cell from smallest to largest.

The structures labeled Y in the image below are called:

What is chromatin? a. the histone-containing protein core of the nucleosome b. the 30-nm fiber c. the complex of DNA and proteins found in the nucleus d. the histone and non-histone proteins in eukaryotic nuclei

The following statements are about the control of chromatin condensation. Select True or False for each. T/F Reducing histone acetylase activity is likely to decrease gene transcription. T/F Mutations that reduce the number of positively charged amino acids on histones should promote open chromatin. T/F Chromatin remodeling complexes add chemical groups to histones. T/F Adding an inhibitor of DNA methylation is likely to reduce gene transcription.