The ABO blood group in humans is an example of __________ producing four phenotypes.

A. polygenic inheritance
B. multiple alleles
C. people with genetic disorders
D. pleiotropy


B. multiple alleles

Biology & Microbiology

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Deleterious alleles are eliminated from populations by

A) natural selection. B) mutation. C) nonrandom mating. D) genetic drift.

Biology & Microbiology

‘Flavr Savr' tomatoes have been genetically engineered so that they underproduce an enzyme involved in ripening. They can later be artificially ripened by:

a. auxin b. ethylene c. auxin d. cytokinin e. gibberellin

Biology & Microbiology

If the poison is a metal, a(n) ___ test is used to identify which one.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

root hypo-

What will be an ideal response?

Biology & Microbiology