NSO Level 1- Science Olympiad (SOF) Class 12: Questions 13 - 16 of 60

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Question number: 13

» Biology » Biotechnology

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MCQ▾

Question

What is radioactively labelled probe in genetic fingerprinting?

Choices

Choice (4) Response

a.

Double stranded RNA molecule

b.

Single stranded RNA molecule

c.

Single stranded DNA molecule

d.

All of the above

Question number: 14

» Biology » Biology in Human Welfare

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Match List-Ⅰ List-Ⅱ▾

Question

Match the following and mark the correct choice.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Freely movable joint

(i)

Vertebrae

(B)

Sternum

(ii)

Pectoral girdle

(C)

Cartilagenous joint

(iii)

Flat bones

(D)

Glenoid Cavity

(iv)

Synovial fluid

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (ii)
  • (iii)
  • (iv)
  • (i)

b.

  • (i)
  • (iv)
  • (iii)
  • (ii)

c.

  • (iv)
  • (iii)
  • (i)
  • (ii)

d.

  • (iii)
  • (ii)
  • (i)
  • (iv)

Question number: 15

» Biology » Genetics and Evolution

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MCQ▾

Question

There is a rare human genetic disease called Maple syrup urine disease that runs in families. Babies who are affected by this disease have urine odor like maple syrup and it occurs because of metabolic disorder. The babies die at an early age if not treated. The parents are never affected with these symptoms but, the child got the disease. What type of gene is it if the disease is caused by a single gene?

Choices

Choice (4) Response

a.

Recessive

b.

Sex linked dominant

c.

X – linked Dominant

d.

Dominant

Question number: 16

» Biology » Genetics and Evolution

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MCQ▾

Question

What does an operator gene combine to in E. coli cell, according to operon theory?

Choices

Choice (4) Response

a.

Repressor to switch off structural gene transcription

b.

Regulator in order to switch on structural gene transcription

c.

Inducer so that structural gene transcription is switched on

d.

Repressor in order to switch on structural gene transcription

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