11. Cell Division

Which of the following is false in respect to eukaryotic chromosomes?

Which of the following is false regarding sister chromatids?

The complex of DNA and protein that makes up a eukaryotic chromosome is properly called __________.

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 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

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

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.

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