NSO Level 1- Science Olympiad (SOF) Class 12: Questions 91 - 96 of 106

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Question 91

Question

MCQ▾

Which type of RNA has information for genetic code?

Choices

Choice (4)Response

a.

mRNA

b.

tRNA

c.

rRNA

d.

snRNA

Question 92

Question

MCQ▾

The diagram represents the shape of an enzyme molecule.

The Diagram Represents the Shape of an Enzyme Molecule

With which substrate would this enzyme most easily form an enzyme-substrate complex?

Choices

Choice (4)Response

a.

Enzyme-Substrate Complex

b.

Enzyme-Substrate Complex

c.

Enzyme-Substrate Complex

d.

Enzyme-Substrate Complex

Question 93

Question

MCQ▾

Which structures found in bacteria make bacteria useful in genetic engineering?

Choices

Choice (4)Response

a.

Plasmids

b.

Plastid

c.

Chloroplast

d.

Nuclei

Question 94

Question

MCQ▾

What makes nuclear waste dangerous to living organisms?

Choices

Choice (4)Response

a.

It damages DNA.

b.

It causes global warming.

c.

It causes soil erosion.

d.

It damages respiratory system.

Question 95

Question

MCQ▾

Which hormone maintains the lining of the uterus during pregnancy?

Choices

Choice (4)Response

a.

Progesterone

b.

FSH & LH

c.

Oestrogen

d.

Testosterone

Question 96

Question

MCQ▾

Which features are present in gaseous exchange surfaces?

Choices

Choice (4)Response

a.

Large surface area- , thick walls- , moist-

b.

Large surface area- × , thick walls- , moist-

c.

Large surface area- × , thick walls- × , moist- ×

d.

Large surface area- , thick walls- × , moist-

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