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
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.
Explanation:Meiosis is the process which accounts for species diversity. Meiosis is termed as a specialized cell division which reduces chromosomes number by half and then creates for haploid cells
