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Thepotemich [5.8K]
3 years ago
12

Considering that males can have Klinefelter (XXY) syndrome, XYY, and normal XY chromosomal combinations, and females can have Tu

rner (XO) syndrome, poly-X (XXX, XXXX), and normal XX combinations, it is obvious that:_________.
(A) maleness results from the presence of only one X chromosome
(B) maleness results from the absence of two or more X chromosomes
(C) maleness results from the minimal presence of one Y chromosome
(D) femaleness results from the presence of two or more X chromosomes
Biology
1 answer:
mestny [16]3 years ago
6 0

Answer:

C) maleness results from the minimal presence of one Y chromosome

Explanation:

  • From the given question, it can be clearly observed that in males irrespective of whichever syndrome they have a Y chromosome is always present whereas in females Y chromosome is not present.
  • Hence, one cal conclude that whenever the Y chromosome is present the individual acquires male characters.
  • The Y chromosome whenever present produces the hormones that leads to maleness, and the number of Y chromosomes in males can also be more than  one such as in case of XYY Klinefelter syndrome.

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