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This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
1. |
In case of summer squash, the W locus shows dominant epistasis over the Y locus. W locus develop white colour while /- give yellow and y/y gives green. If you cross a yellow and a green summer squash you can t get______________ |
A. | Yellow |
B. | Green |
C. | White |
D. | You can get all |
Answer» D. You can get all | |
2. |
Dominant epistasis ratio with A as epistatic gene 12:3:1 corresponds to ________________ |
A. | A/- B/- : A/- b/b : a/a B/- |
B. | a/a B/- : a/a b/b : a/a b/- |
C. | A/A B/-: A/- B/-: a/a b/b |
D. | A/- -/- : a/a B/-: a/a b/b |
Answer» E. | |
3. |
In case of dominant epistasis which of the following will have the same expression, when A is the epistatic locus? |
A. | A/a B/b and a/a B/b |
B. | A/A b/b and A/A B/b |
C. | a/a b/b and A/a b/b |
D. | a/a b/b and a/a B/B |
Answer» C. a/a b/b and A/a b/b | |
4. |
Epistasis can produce a ratio of 12:3:1. |
A. | True |
B. | False |
Answer» B. False | |