SAT Subject Biology Practice Question 99: Answer and Explanation

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Question: 99

9. A somatic cell of the common octopus (Octopus vulgaris) has 56 chromosomes. What number of chromosomes will an octopus gamete contain?

A. 14
B. 28
C. 56
D. 112
E. 168

Correct Answer: B


A somatic cell is diploid. If the organism's diploid chromosome number is 56, then the haploid gamete will possess half of this number of chromosomes, which is 28.

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