NSO Level 1- Science Olympiad (SOF) Class 12: Questions 17 - 19 of 60

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Question number: 17

» Biology » Genetics and Evolution

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MCQ▾

Question

Which of the following is not an essential attribute that a biological molecule would need to be a useful genetic material?

Choices

Choice (4) Response

a.

It must carry all of the information needed to direct the specific organization and metabolic activities of the cell.

b.

It must have highly repetitive DNA sequences.

c.

It must be capable of undergoing occasional mutations, such that the information it carries is altered in a beneficial way.

d.

All of the above

Question number: 18

» Biology » Genetics and Evolution

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Question

3’ GCT CCG AGA GGA GGC AGA 5’ is the nucleotide sequence on a gene which undergoes transcription. What will be the sequence of bases on mRNA and tRNA?

Choices

Choice (4) Response

a.

AGC TAC TTA CTC ACC ATA and AGC UAC UUA CUC ACC AUA

b.

CGU ACA GCC UGA UAU ATC and GCA UGU CGG ACU AUA

c.

CGA GGC UCU CCU CCG UCU and GCU CCG AGA GGA GGC AGA

d.

UUU ACG CGC UAU UGA UAU and AAA UGC GCG AUA UAU UGA

Question number: 19

» Biology » Biotechnology

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Question

Multiple Ovulation Embryo Transfer Technology is said to be useful in animal breeding, what is the reason behind this?

Choices

Choice (4) Response

a.

Herd size can be increased in a short time

b.

Used to breed unrelated animals with no common ancestors for almost 5 years

c.

Helps to remove less desirable genes and accumulate those which are superior

d.

Helps in developing new stable breeds that are superior to existing breeds

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