AP BIOLOGY

EVOLUTION

SOURCES OF VARIATION IN A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The two main sources of genetic variation is ____ and ____
A
mutations and gene shuffling
B
mutations and people
C
gene shuffling and chromosomes
D
phenotypes and genotypes
Explanation: 

Detailed explanation-1: -Only variation that arises in germ cells can be inherited from one individual to another and so affect population dynamics, and ultimately evolution. Mutations and recombination are major sources of variation.

Detailed explanation-2: -The genetic diversity has three different sources: mutation, recombination and immigration of genes. Mutation is the driving force of genetic variation and evolution.

Detailed explanation-3: -The two main sources of genetic variation are mutations and the genetic shuffling that results from sexual reproduction.

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