Can a male have a recessive allele?

Are male alleles dominant or recessive?

The trait is dominant in men while at the same time it is recessive in women. It is difficult to use “R” to represent the dominant allele and “r” to represent the recessive allele because they behave differently as they pass from males to females.

Are males more likely to inherit recessive alleles?

A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.

Do males only have one allele?

Since males have only a single copy of the X chromosome, they have only a single allele for any gene on the X chromosome. Males are said to be “hemizygous” for any X-chromosome genes, meaning that there are only half (“hemi”) as many alleles as normally present for a diploid individual.

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