1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

A certain plant homozygous for yellow seeds and red flowers was crossed with a plant homozygous for green seeds and white flowers. The F1 plants had yellow seeds and pink flowers. The F1 plants were selfed to get F2 progeny. Assuming independent assortment of the two characters, how many phenotypic categories are expected for these characters in the F2 generation ?

A
9
B
16
C
4
D
6
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1

Frequency of recombination between gene pairs on same chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by

A
Sutton and Boveri
B
Alfred Sturtevant
C
Henking
D
Thomas Hunt Morgan
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1

The phenomenon of pleiotropism refers to

A
Presence of two alleles, each of the two genes controlling a single trait
B
A single gene affecting multiple phenotypic expression
C
More than two genes affecting a single character
D
Presence of several alleles of a single gene controlling a single crossover
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1

Which of the following statements are correct about Klinefelter’s Syndrome?

A. This disorder was first described by Langdon Down (1866).

B. Such an individual has overall masculine development. However, the feminine development is also expressed.

C. The affected individual is short statured.

D. Physical, psychomotor and mental development is retarded.

E. Such individuals are sterile.

Choose the correct answer from the options given below :

A
C and D only
B
B and E only
C
A and E only
D
A and B only
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