In small isolated populations, gene frequencies can fluctuate considerably. The term that applies to this circumstance is ________

A) genetic isolation
B) stabilizing selection
C) natural selection
D) allelic separation
E) genetic drift


Answer: E

Biology & Microbiology

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The __________ is the pelvic girdle, pectoral girdle, and paired limbs. Fill in the blank(s) with the appropriate word(s)

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When chromosomes fail to separate at either the first or second meiotic division this

A. is known as crossing over. B. results in a sperm or egg cell with an abnormal number of chromosomes. C. is known as translocation. D. results in a failure to produce gametes. E. results in arrest during meiosis.

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The structure of the Drosophila gene, called Tinman, is similar to a gene in humans that also _____

A) promotes ear development B) specifies the location of the heart C) determines structures in the eyes D) specifies limb elongation points

Biology & Microbiology