Genetics and Evolution [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Biology]: Questions 1 - 5 of 282

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Question 1

Question MCQ▾

Operon is

Choices

Choice (4)Response

a.

A set of closely linked genes regulating metabolic pathways in prokaryotes.

b.

The sequence of three nitrogen bases determining a single amino acid.

c.

The sequence of nitrogen bases in mRNA which codes for a single amino acid.

d.

A segment of DNA specifying one polypeptide chain in protein synthesis.

Edit

Question 2

Question MCQ▾

Which of the following is a base analogue?

Choices

Choice (4)Response

a.

Colchicine

b.

Caffeine

c.

Nitrous acid

d.

5 – bromouracil

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Question 3

Question MCQ▾

If an offspring shows any one of the characters of either of parents, the

Choices

Choice (4)Response

a.

Offspring is hereditary.

b.

The character is related with cytoplasm.

c.

Character is said to be hereditary.

d.

Question does not provide sufficient data or is vague

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Question 4

Question MCQ▾

The monosomic condition in human beings depicted as XO is referred to as

Choices

Choice (4)Response

a.

Criminal syndrome

b.

Down՚s syndrome

c.

Turner՚s syndrome

d.

Klinefelter՚s syndrome

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Question 5

Question MCQ▾

Which of the following is genetically inert and does not transcribe messenger RNA for protein synthesis?

Choices

Choice (4)Response

a.

DNA of heterochromatin

b.

DNA of euchromatin and heterochromatin

c.

DNA of euchromatin

d.

All of the above

Edit