Biology Practice Problems Mitosis Practice Problems Solution: Mitotic chromosomes are about _____ times more com...

Solution: Mitotic chromosomes are about _____ times more compact than a DNA molecule in its extended form, and interphase chromosomes are _____ compact than mitotic chromosomes.A. 5,000 ; moreB. 50 ; moreC. 500,000 ; lessD. 5,000 ; lessE. 50 ; less

Problem

Mitotic chromosomes are about _____ times more compact than a DNA molecule in its extended form, and interphase chromosomes are _____ compact than mitotic chromosomes.

A. 5,000 ; more

B. 50 ; more

C. 500,000 ; less

D. 5,000 ; less

E. 50 ; less

Solution

The DNA contained in chromosomes are made up of long strands of polynucleotides. These polynucleotide molecules are packaged into nucleosomes along with histone proteins which then condense into chromatin fibers. These would then be organized into separate chromosomes. This organization creates a highly condensed structure which is further condensed after DNA replication as part of the cell division process.

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