Which types of phenotypic ratios are likely to occur in crosses when dealing with two gene pairs for which all the genotypic combinations are of equal viability?

A) 9:3:3:1 B) 2:3, 1:2 C) 6:6:2 D) 12:2:2 E) 1:2:1, 3:1


Answer: A

Biology & Microbiology

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Disruptive selection occurs when

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Which type of lung cancer is the most aggressive form?

a. beta cell carcinoma b. squamous cell carcinoma c. large-cell carcinoma d. adenocarcinoma e. small-cell carcinoma

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Which is NOT a correct association?

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Chickenpox is caused by a poxvirus.

Answer the following statement true (T) or false (F)

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