Sex-linked Inheritance

Question 1

What was Thomas Hunt Morgan's main contribution to science?

Revolt · Accepted Answer

He discovered that certain traits were linked to the X chromosome.

Question 2

Error

Revolt · Accepted Answer

50 percent

Question 3

Which statement about inheritance is true?

Revolt · Accepted Answer

Fathers always determine the gender of the offspring in humans.

Question 4

Which statement is always true when describing sex-linked inheritance?

Revolt · Accepted Answer

The alleles are found on the X or Y chromosome.

Question 5

Error

Revolt · Accepted Answer

A Punnett square is shown. The columns are labeled Upper X r and Upper Y. The rows are labeled x Upper R and x Upper R. Clockwise, from top-left, the boxes include: Upper X Upper R Upper X r, Upper X Upper R Y, X Upper R Upper Y, X Upper R Upper X r.

Question 6

How are the alleles for sex-linked traits inherited?

Revolt · Accepted Answer

They are passed from parents to offspring on the X and Y chromosomes.

Question 7

Error

Revolt · Accepted Answer

Xh

Question 8

Error

Revolt · Accepted Answer

0 percent

Question 9

Which is not considered a sex-linked trait?

Revolt · Accepted Answer

purple flower color in pea plants

Question 10

Duchenne muscular dystrophy is an X-linked recessive disorder. What is the probability that a female offspring of the cross that is shown above would have a recessive allele for Duchenne muscular dystrophy disorder?

Revolt · Accepted Answer

100 percent

Sex-linked Inheritance Answers

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