1
NEET 2015
MCQ (Single Correct Answer)
+4
-1
A gene showing codominance has :
2
NEET 2015
MCQ (Single Correct Answer)
+4
-1
A colour blind man marries a woman with
normal sight who has no history of colour
blindness in her family. What is the
probability of their grandson being colour
blind?
3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
$$ \text { Match List I with List II : } $$
| List-I (Phase of cell cycle) |
List-II (Activity) |
||
|---|---|---|---|
| A. | Incomplete dominance | I. | Human skin colour |
| B. | Co-dominance | II. | Inheritance of flower colour in Antirrhinum sp. |
| C. | Pleiotropy | III. | Phenylketonuria disease in humans |
| D. | Polygenic inheritance | IV. | ABO blood groups |
Choose the correct answer from the options given below :
4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Which of the following statements are true with reference to the sex-determination in honeybees?
A. An offspring formed from the union of a sperm and an egg, develops as a female (queen or worker).
B. An unfertilized egg develops as a male by parthenogenesis.
C. A male has half the number of chromosomes than that of a female.
D. Males produce sperms by meiosis.
E. Honeybees have a haplodiploid sex-determination system.
Choose the correct answer from the options given below :
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