Non-Mendelian Inheritance Answers

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Which statement about Thomas Hunt Morgan’s conclusion is true?

Traits like white eye color in fruit flies are recessive traits that are linked to the Y chromosome.

Traits like white eye color in fruit flies must be linked to both X and Y chromosomes to be expressed.

Traits like white eye color in fruit flies are dominant traits that are linked to X chromosomes.

Traits like white eye color in fruit flies are linked to the X chromosome.

have two X chromosomes, while have one X chromosome and one Y chromosome.

Females

Males

females

males

Which statement about sex-linked traits is true?

Sex-linked traits are always dominant.

Sex-linked traits only occur in heterozygous allele pairs.

Sex-linked traits may be passed from parent to offspring on either the X chromosome or the Y chromosome.

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