Duplicate Epistasis MCQs : This section focuses on the "Duplicate Epistasis". These Multiple Choice Questions (MCQs) should be practiced to improve the Duplicate Epistasis skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Choose the off one out in case of duplicate recessive episasis.
A. A/A b/b
B. A/A B/B
C. A/a B/b
D. A/a B/-
Question 2
Flower colour in sweet pea shows duplicate epistasis, if purple colour is dominant what is the F2 ratio?
A. 15:1
B. 9:7
C. 3:1
D. 9:3:4
Question 3
If you cross two different strains of white flower you may get a purple flower in a sweet pea plant.
A. True
B. False
Question 4
If you self cross purple flower in sweet pea, you will get__________
A. Purple flower in every occasion
B. White flower in every occasion
C. May be white or purple flower
D. A blend of white and purple flower
Question 5
In sweet pea a white substance is first converted to a ___________ substance by 1st gene and that to a ______________ substance by 2nd gene to give a purple flower.
A. Yellow, purple
B. Green, purple
C. Purple, yellow
D. White, yellow
Question 6
Self crossing a white flower of sweet pea would give a ____________________
A. White flower only
B. Equal probability of white or purple
C. More white flower than purple
D. Purple flowers only
Question 7
Shepherd’s purse has two shape heart and narrow. If you cross a true breeding heart to a true breeding narrow, F1 will give___________
A. Heart
B. Narrow
C. A mixture of heart or narrow
D. Disc shaped
Question 8
The 15/16 of the duplicate dominant epistasis doesn’t correspond to _____________
A. A/a B/b
B. A/A b/b
C. a/a B/b
D. a/a b/b
Question 9
What is the phenotypic ratio in case of duplicate dominant epistasis?
A. 9:3:4
B. 12:3:4
C. 15:1
D. 9:7
Question 10
Which of the following condition in recessive duplicate epistasis will give the odd phenotype?
A. A/- B/-
B. A/- b/b
C. a/a B/-
D. a/a b/b
Question 11
You crossed two heart shaped Shepherd’s purse which is heterozygous at one locus and homozygous recessive at other gene locus, what would be the ratio of heart shaped and narrow in F1?
A. All heart
B. All narrow
C. 3:1
D. 15:1