5 Quick Mendelian Genetics Questions! Studying for test, but I don't have an answer key to check?

1. Simon has brown eyes and allele "b" and allele "B" at the eye color locus. What is his genotype?


Question 1 answers


a. Bb


b. B


c. b


d. Brown eyes





2. A somatic cell has two copies of each chromosome (forming a homologous pair) and thus _____ alleles of a gene, which may be identical or different.


Question 2 answers


a. 1


b. 2


c. 4


d. 2 or 4, depending on the type of chromosome.





3. Mendel's Law of Segregation states that different allele pairs segregate independently during gamete formation.


Question 3 answers


a. True


b. False





4. Snapdragons exhibit incomplete dominance. If R=red flowers and r=white flowers, which of the following crosses would yield the highest number of pink flowers?


Question 4 answers


a. RR x Rr


b. Rr x Rr


c. RR x rr


d. rr x Rr





5. What is the characteristic result of a simple dihybrid cross between two individuals heterozygous at both loci?


Question 5 answers


a. 9:3:3:1 phenotype ratio


b. 1:2:1 genotype ratio


c. 3:1 phenotype ratio


d. Any, depends on cross

5 Quick Mendelian Genetics Questions! Studying for test, but I don't have an answer key to check?
1a


2b


3a


4c


5a
Reply:1. A 2. C 3. true 4. C 5. B