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ICE Princess25 [194]
3 years ago
12

Some females have only one X chromosome, and their genotype is expressed as XO. There are living males with the genotype XXY and

XYY, but none with genotype YO. What explains this difference?
Biology
1 answer:
Nesterboy [21]3 years ago
8 0

Answer:

The answer is given below:

Explanation:

Most of the gender specific abnormalities which are related to chromosomes are due to sex chromosomes. As a rule in general males receives or inherit an X chromosome from his mother and a Y chromosome from his father, so males have XY- sex chromosomes. Females have XX-chromosomes, they inherit one X chromosome from mother and one X chromosome from father. One Y chromosome is enough to produce maleness and in absence of Y chromosome, it is necessary for femaleness.  

Sex chromosome abnormalities in females appear as a result of change in the number of X chromosomes. In male abnormalities are due to change in the numbers of either the X or the Y chromosome or both.  

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