Genetics and Evolution (AIIMS Biology): Questions 12 - 17 of 50

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Question number: 12

» Genetics and Evolution » Heredity and Variation » Pleiotropy

Appeared in Year: 2007

Assertion-Reason▾

Assertion (Ꭺ)

Phenylketonuria is a recessive hereditary disease caused by failure of the body to oxidize an amino acid phenylalanine to tyrosine because of defective enzyme.

Reason (Ꭱ)

It results in presence of phenylalanine in urine

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are false

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 13

» Genetics and Evolution » Molecular Basis of Inheritance » Structure of DNA and RNA

Appeared in Year: 2006

MCQ▾

Question

Thymine is -

Choices

Choice (4) Response

a.

4-Methyl uracil

b.

5-Methyl uracil

c.

1-Methyl uracil

d.

3-Methyl uracil

Question number: 14

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

Appeared in Year: 2000

MCQ▾

Question

Law of inheritance was given by

Choices

Choice (4) Response

a.

Mendel

b.

Lamarck

c.

Darwin

d.

Khorana

Question number: 15

» Genetics and Evolution » Molecular Basis of Inheritance » Transcription

Appeared in Year: 2004

MCQ▾

Question

Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it?

Choices

Choice (4) Response

a.

AAA-Lysine

b.

UUA-Valine

c.

CCC-Alanine

d.

AUG-Cysteine

Question number: 16

» Genetics and Evolution » Evolution

MCQ▾

Question

Which of the following is a vestigial structure in python?

Choices

Choice (4) Response

a.

Scale

b.

Poison glands

c.

Hind limb

d.

Teeth

Question number: 17

» Genetics and Evolution » Molecular Basis of Inheritance » Transcription

Appeared in Year: 2006

MCQ▾

Question

During protein synthesis in an organism, at one point the process comes to a halt. Select the group of the three codons from the following from which any one of the three could bring about this halt

Choices

Choice (4) Response

a.

UUG, UCA, UCG

b.

UUU, UCC, UAU

c.

UAG, UGA, UAA

d.

UUC, IIA, UAC

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