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

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
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

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
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Broad palm with single palm crease is visible in a person suffering from-

A
Turner’s syndrome
B
Klinefelter’s syndrome
C
Thalassemia
D
Down’s syndrome
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Change Language

Which one of the following symbols represents mating between relatives in human pedigree analysis?

A
NEET 2023 Biology - Principles of Inheritance and Variation Question 8 English Option 1
B
NEET 2023 Biology - Principles of Inheritance and Variation Question 8 English Option 2
C
NEET 2023 Biology - Principles of Inheritance and Variation Question 8 English Option 3
D
NEET 2023 Biology - Principles of Inheritance and Variation Question 8 English Option 4
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