MCQ on Homozygous genes

Multiple Choice Questions on Homozygous genotype

1. Which of the following is a homozygous genotype_____



C. AaBb

D. aaBb

Answer: C

2. Which of the following genotypes is homozygous_________


B. DdCc


D. AAbb

Answer: B

3. Homozygous is characterized by______

A. Alleles do not segregate when gametes are formed

B. Selfed progeny traits do not segregate

C. Homozygous parents are homozygous

D. Homozygous crosses, the offspring are still homozygous

Answer: B

4. The best way to tell if an individual is homozygous is to______

A. Let it mate with a hybrid

B. Let it mate with homozygous

C. Let it mate with a recessive type

D. Let it mate with the dominant type

Answer: B

5. Which of the following statements about heterozygotes and homozygotes is correct:

A. At least one parent of a heterozygote is a heterozygote

B. Individuals with genotype AABb are not homozygous

C. The progeny of homozygous selfing segregate for the trait

D. All progeny of heterozygous selfing are heterozygous

Answer: B

6. Which of the following statements is correct_______

A. When two homozygotes intersect, the offspring are all homozygotes

B. Homozygous selfing, the offspring are generally homozygous

C. When two heterozygotes intersect, the offspring must be homozygous

D. Heterozygotes are selfed, the offspring must be heterozygotes

Answer: B

7. Which of the following statements is correct________

A. Homozygous selfed progeny are all homozygous

B. Homozygous testcross progeny are all homozygous

C. Heterozygote selfed progeny are all heterozygotes

D. Heterozygous testcross progeny are all heterozygotes

Answer: A

8. Which of the following statements about homozygotes is false_______

A. It develops from the union and development of male and female gametes of the same gene

B. Continuous selfing, the trait can be inherited stably

C. The offspring of the hybrid must be homozygous

D. All of these 

Answer: C

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