Answer :
When a trait is x-linked, a single recessive allele is sufficient for a male to be affected because he carries only one X chromosome
What do you mean a single recessive allele is sufficient for a male to be affected ?
Genetic disorders connected to mutations in genes on the X chromosome are referred to as having X-linked recessive inheritance. Because he contains just one X chromosome, a male who carries this mutation will be affected. A female with a gene mutation on one X chromosome but a normal gene on the other is typically unaffected.
- Males are more frequently affected by X-linked recessive disorders. Men only possess one X chromosome. The disease is brought on by a single recessive gene on that X chromosome. The Y chromosome makes up the second half of the male XY gene pair.
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