Question 1:

Which of the following is the basic unit of DNA packaging in eukaryotic chromosomes?

Explanation: A) The basic unit of DNA packaging in eukaryotic chromosomes is the nucleosome. It consists of DNA wrapped around a core of histone proteins.

Question 2:

What is the purpose of DNA packaging in eukaryotic chromosomes?

Explanation: D) The purpose of DNA packaging in eukaryotic chromosomes is to condense DNA, protect DNA from damage, and regulate gene expression.

Question 3:

What is the structure formed by coiled and condensed DNA during cell division?

Explanation: A) The structure formed by coiled and condensed DNA during cell division is a chromosome. It consists of two sister chromatids held together by a centromere.

Question 4:

What is the name of the proteins that help organize and condense DNA into a higher-order structure?

Explanation: A) The proteins that help organize and condense DNA into a higher-order structure are called histones. They are responsible for the formation of nucleosomes.

Question 5:

What is the term for the less condensed form of DNA in the interphase of the cell cycle?

Explanation: A) The less condensed form of DNA in the interphase of the cell cycle is called chromatin. It allows for accessibility to genes and transcriptional activity.