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Genetics

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Set 2 Mendels Principles Of Heredity

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Question 1

(Multiple Choice)

Free
What does the pattern of inheritance in this pedigree indicate about the disease allele? A)The disease allele is recessive. B)The disease allele is dominant. C)There is no indication that the disease allele is either dominant or recessive. D)The disease allele is not inherited but arises only by a new mutation in affected individuals. What does the pattern of inheritance in this pedigree indicate about the disease allele?

A)The disease allele is recessive.
B)The disease allele is dominant.
C)There is no indication that the disease allele is either dominant or recessive.
D)The disease allele is not inherited but arises only by a new mutation in affected individuals.

Answer

Question 2

(Multiple Choice)

Free
According to Mendel's Law of Independent Assortment,

A)alleles of genes on different chromosomes assort randomly into different gametes.
B)alleles of genes assort into gametes grouped according to how they were inherited originally.
C)dominant alleles for one gene must assort into the same gamete as the dominant alleles for another gene.
D)dominant alleles for one gene must assort into the same gamete as the recessive alleles for another gene.

Answer

Question 3

(Multiple Choice)

Free
Which of the following probabilities is correct regarding a mating of an Ss RR individual to an individual who is Ss Rr ? (A - indicates the the second allele is either dominant or recessive. )

A)S- RR: 37.5%
B)Homozygous recessive: 10%
C)Heterozygous both alleles: 50%
D)ss R- : 15.5%

Answer