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25 October, 16:19

Which of the following statements is generally true of aneuploidies in newborns? a. An aneuploidy resulting in the deletion of a chromosome segment is less serious than a duplication. b. Human aneuploidy usually conveys an adaptive advantage in humans. c. A monosomy is more frequent than a trisomy. d. Monosomy X is the only viable monosomy known to occur in humans.

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  1. 25 October, 18:04
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    d. Monosomy X is the only viable monosomy known to occur in humans.

    Explanation:

    Human have 22 pair of homologous chromosomoses and an extra pair of sex chromosomes. While in males the sex chromosomes are X and Y, females have two chromosomes X. Anyway, in normal conditions the total number of chromosomomes that humans have in their cells is 46 (23 pair of chromosomes).

    Aneuploidy is a biological condition where an individual have an abnormal number of chromosomes in their cells. In humans for examples, this would be a human having more or less than 46 chromosomes.

    The Turner syndrome also called monosomy X is an aneuploidy where one of the X chromosomes is missing in a female. Although under constant supervision, people with Turner syndrome have viable healthy lives. However this is the only monosomy that occur in humans that is compatible with life.
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