In the F₂ Generation of a Homozygous Round (AA) ×

question 33

Multiple Choice

In the F₂ generation of a homozygous round (AA) × homozygous wrinkled (aa) cross in peas, two seeds are chosen at random. What is the probability that one is AA and the other aa?

• A)(1/4)²
• B)(3/4)(1/4)
• C)2(3/4)(1/4)
• D)(3/4)²

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Definitions:

Emerging Disease

An emerging disease is a disease that has appeared in a population for the first time, or that may have existed previously but is rapidly increasing in incidence or geographic range.

Vector

In biotechnology, a plasmid or other DNA molecule that can accept foreign DNA and be replicated inside a host cell. In epidemiology, an animal that carries a pathogen from one host to another.

Reverse Transcriptase

An enzyme that catalyzes the formation of DNA from an RNA template, crucial for the replication of retroviruses.

Retrovirus

RNA virus that uses the enzyme reverse transcriptase to produce viral DNA in a host cell.