NSO Level 1- Science Olympiad (SOF) Class 9: Questions 248 - 254 of 1123

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Question number: 248

» Biology » Improvement in Food Resources

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Match List-Ⅰ List-Ⅱ▾

Question

Match the following.

List-Ⅰ (Column I)List-Ⅱ (Column II)

(A)

Deforestation

(i)

Costly

(B)

Selective breeding

(ii)

Loss of biodiversity

(C)

Genetic engineering

(iii)

Soil erosion

(D)

Extrachromosomal material

(iv)

Plasmids

Choices

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

a.

  • (iii)
  • (ii)
  • (i)
  • (iv)

b.

  • (ii)
  • (iv)
  • (iii)
  • (i)

c.

  • (i)
  • (iv)
  • (ii)
  • (iii)

d.

  • (ii)
  • (i)
  • (iv)
  • (iii)

Question number: 249

» Biology » Improvement in Food Resources

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MCQ▾

Question

The undifferentiated mass of cells is known as

Choices

Choice (4)Response

a.

Suspension

b.

Tissue

c.

Callus

d.

None of the above

Question number: 250

» Biology » Natural Resources

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MCQ▾

Question

Disadvantages of in-situ conservation are

Choices

Choice (4)Response

a.

Difficult to control predators

b.

Genetic drift

c.

Chances of increased inbreeding

d.

All a. , b. and c. are correct

Question number: 251

» Biology » Improvement in Food Resources

Edit
MCQ▾

Question

Which of the following is used to grow the callus?

Choices

Choice (4)Response

a.

Polyacrylamide gel

b.

Agarose gel

c.

Agar-agar gel

d.

Silica gel

Question number: 252

» Biology » Improvement in Food Resources

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MCQ▾

Question

Restriction endonucleases cut the DNA at

Choices

Choice (4)Response

a.

in the middle

b.

restriction site

c.

3’-end

d.

5’-end

Question number: 253

» Biology » Improvement in Food Resources

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MCQ▾

Question

Streptococcus is used in the production of

Choices

Choice (4)Response

a.

Alcohol

b.

Cheese

c.

Milk

d.

Bread

Question number: 254

» Biology » Natural Resources

Edit
MCQ▾

Question

Disadvantages of atomic energy are

Choices

Choice (4)Response

a.

Requires knowledgeable, trained and skilled person

b.

Not at all cost effective

c.

Spillage may cause health issues for many years as it is radioactive

d.

All a. , b. and c. are correct

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