AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
DNA is typically found in cells in the form of a very long strand that is coiled many times and contains thousands or millions of nitrogen bases. Which term best describes this very long molecule of DNA?
A
chromosome
B
gene
C
allele
D
nucleotide
Explanation: 

Detailed explanation-1: -In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Detailed explanation-2: -Nucleotides are arranged in two long strands that form a spiral called a double helix.

Detailed explanation-3: -Chromosomes are structures within cells that contain DNA and many genes.

Detailed explanation-4: -Figure 7: To better fit within the cell, long pieces of double-stranded DNA are tightly packed into structures called chromosomes.

There is 1 question to complete.