AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A mutation is a ____ in the nucleotide base sequence of a gene.
A
wrinkle
B
change
C
bump
D
tumor
Explanation: 

Detailed explanation-1: -A mutation is a change in a genetic sequence. Mutations include changes as small as the substitution of a single DNA building block, or nucleotide base, with another nucleotide base. Meanwhile, larger mutations can affect many genes on a chromosome.

Detailed explanation-2: -A mutation (Section 14.1) is a change in the nucleotide sequence of a short region of a genome (Figure 14.1A). Many mutations are point mutations that replace one nucleotide with another; others involve insertion or deletion of one or a few nucleotides.

Detailed explanation-3: -Any change in the nucleotide sequence of DNA is called a mutation. Mutations are permanent changes in the nucleotide sequence of DNA that occur at random and range in size. Mutations can result from errors that occur during replication or exposure to environmental factors.

Detailed explanation-4: -A point mutation is going to change one nucleotide in the DNA code, this may or may not result in a changed amino acid.

There is 1 question to complete.