Week 9 Test Answers
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The Punnett square predicts the ratio of genotypes in the offspring, based on the genotypes of the parents. In this cross, tallness (H) is dominant to shortness (h).Based on the Punnett square, what is the phenotype of the offspring?
A
HhB
HHC
tallD
short22
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Who discovered the monomers of nucleic acids?
A
Phoebus LeveneB
James Watson, Francis Crick, and Rosalind FranklinC
Friedrich MiescherD
Gerardus Johannes Mulder and Jöns Jacob Berxelius23
Which combination of alleles are always involved in the inheritance of a sex-linked trait?
A
heterozygous allelesB
homozygous allelesC
alleles that are carried on X and Y chromosomesD
alleles that are carried on all chromosomes except the X and Y chromosomes24
Which statement is always true when describing sex-linked inheritance?
A
It results in a dominant trait.B
The alleles are found on the X or Y chromosome.C
The resulting trait is influenced by multiple alleles.D
It is affected by alleles on at least three different chromosomes.25
What is the purpose of using a pedigree?
A
to study the causes of traits that are acquired during an organism’s lifeB
to understand patterns of inheritance in organismsC
to determine mating patterns in organismsD
to identify traits that are acquired during an organism’s lifeDid you find these answers helpful?
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