Which agent of evolutionary change occurs when a population's allele frequency is altered due to chance?

A. genetic drift
B. gene flow
C. nonrandom mating
D. natural selection


Ans: A. genetic drift

Biology & Microbiology

You might also like to view...

During the M checkpoint, the cell ____

a. proceeds to interphase and completes DNA replication b. proceeds to G2 phase and the cell prepares to divide c. proceeds to S phase or enters inactive G0 state d. monitors attachment of spindle fibers to chromosomes e. monitors completion of DNA synthesis and DNA damage

Biology & Microbiology

The first photosynthetic organisms to obtain hydrogen by splitting water were the cyanobacteria

______________ Indicate whether the statement is true or false.

Biology & Microbiology

Ecosystem diagrams help us visualize the flow of ___________.

A. matter and energy B. rivers and streams C. seasonal change D. happiness E. goods and services

Biology & Microbiology

What structure is present within a follicle?

A. vaginal cleft B. labia C. mucus-secreting glands D. oocyte E. clitoris

Biology & Microbiology