UPSC NCERT SCIENCE AND TECHNOLOGY NOTES: TOPIC WISE SOLVED MCQ’s

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1. Consider the following:

1) Camphor

2) Chicory

3) Vanilla

Which of the above is/are plant product?

a) 1 and 2

b) 3 only

c) 1 and 3

d) 1, 2 and 3

Ans: D

2. Canola refers to a special type of oilseed mustard varieties bred for human consumption. The main characteristics of these varieties are that the.

a) Seeds have a very high oil content

b) Oil is rich in unsaturated fatty acids

c) Oil has a long shelf life

d) Oil has a very low crucial acid content

Ans: B

3. An enzyme produced by HIV that allows the integration of HIV DNA into the host cell’s DNA is.

a) Integrase

b) Ligase

c) Helicase

d) DNA gyrase

Ans: A

4. Which one of the following is a good source of protein?

a) Gram

b) Pea

c) Soybean

d) Pigeon pea

Ans: C

5. Pulses are obtained from the family.

a) Liliaceae

b) Cycaedaceae

c) Leguminosae

d) Fungi

Ans: C

6. Tallest tree is

a) Deodar

b) Eucalyptus

c) Sequoia

d) None of these.

Ans: B

7. Penicillin is isolated from:

a) Fungi

b) Algae

c) Virus

d) Bacteria

Ans: A