1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1

The recombination frequency between the genes a & c 5&, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 25% and a & d is 29%. What will be the sequence of these genes on a linear chromosome?

A
a, d, b, c
B
d, b, a, c
C
a, b, c, d
D
a, c, b, d
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The production of gametes by the parents, formation of zygotes, the F1 and F2 plants, can be understood from a diagram called :
A
Net square
B
Bullet square
C
Punch square
D
Punnett square
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Now-a-days it is possible to detect the mutated gene causing cancer by allowing radioactive probe to hybridise its complimentary DNA in a clone of cells, followed by its detection using autoradiography because:
A
mutated gene does not appear on photographic film as the probe has complementarity with it
B
mutated gene partially appears on a photographic film
C
mutated gene completely and clearly appears on a photographic film
D
mutated gene does not appear on a photographic film as the probe has no complementarity with it
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased?
A
100%
B
50%
C
75%
D
25%
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