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How many autosomes will be present in a sexually reproducing organism with the chromosome number 2n=18?

A17

B16

C18

D15

Answer:

B. 16

Read Explanation:

-As the germ cells contain 2n chromosomes, it is a diploid cell. -It goes through meiosis to develop from a gamete with half as many chromosomes. -The chromosome is divided into two categories: autosomes and allosomes, which are sex chromosomes. -Since, meiosis occurs in the production of ovum, chromosomes divide into exact half, thus there will be 8 autosomes and 1 sex chromosome. -Therefore, it contains 2 sex chromosomes and 16 autosomes in total. Hence, 16 is the number of the autosomes of this species


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