Add labels to the figure that follows, which illustrates duplicated chromosomes.

The region of a chromosome in which the two double strands of replicated DNA are held together is called __________.

The centromere is a region in which __________.

What is chromatin?a. the histone-containing protein core of the nucleosomeb. the 30-nm fiberc. the complex of DNA and proteins found in the nucleusd. the histone and non-histone proteins in eukaryotic nuclei

What is chromatin?a. the histone-containing protein core of the nucleosomeb. the 30-nm fiberc. the complex of DNA and proteins found in the nucleusd. the histone and non-histone proteins in eukaryotic nuclei

The centromere is a region at which .a. sister chromatids are attached to each other;b. metaphase chromosomes align;c. the tips of chromosomes are found;d. the nucleus is located

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.

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.

Sister chromatids .a. are two different chromosomes attached to each other;b. are exact copies of one chromosome that are attached to each other;c. arise from the centrioles;d. are broken down by mitosis;e. are chromosomes that carry different genes