Sex-linked Inheritance

Question 1

Why are women often carriers of X-linked traits but rarely affected by them?

Revolt · Accepted Answer

Women often carry an X-linked recessive allele on one X chromosome without being affected because a dominant allele on their other X chromosome can mask it. They are usually affected only if they inherit two recessive alleles.

Question 2

The pedigree on the right shows the inheritance pattern for an X-linked recessive disorder.How many individuals are carriers of the disease but are not affected?

Revolt · Accepted Answer

4

Question 3

The pedigree on the right shows the inheritance pattern for an X-linked recessive disorder.If the female circled in pink married an affected male and had a female child, what is the chance that the child would also be affected? Express your answer in a percentage.%What is the chance that the child would be a carrier? ⇒ 50% True or false? The child could be standard.

Revolt · Accepted Answer

Part 1: 50

Question 4

True or false? The child could be standard.true✔ false

Revolt · Accepted Answer

false

Sex-linked Inheritance Answers

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