Multiple Choice
In a DNA molecule, the phosphate serves which of the following functions?
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7. DNA and Chromosome Structure
DNA Structure
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Each chromosome in a cell contains ______.
A
multiple, separate molecules of RNA
B
only non-coding regions of DNA
C
several different types of proteins only
D
a single, continuous molecule of DNA
Verified step by step guidance1
Understand that chromosomes are structures within cells that carry genetic information.
Recall that chromosomes are made up of DNA and proteins, but the DNA itself is organized in a specific way.
Recognize that each chromosome consists of one long, continuous molecule of DNA, which contains both coding and non-coding regions.
Note that this DNA molecule is associated with proteins (like histones) that help package and organize it, but the chromosome itself is not made of multiple separate DNA molecules.
Therefore, the correct description is that each chromosome contains a single, continuous molecule of DNA.
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