Biochemistry - Recombinant DNA Technology

Exercise :: Recombinant DNA Technology - Section 1

  • Recombinant DNA Technology - Section 1
6. 

When populations are small, gene frequencies can change from generation to generation and some alleles may become fixed in a population. This is called __________ .

A. assortative mating
B. inbreeding
C. heterosis
D. genetic drift

Answer: Option D

Explanation:

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7. 

Which of the following is correct in terms of determination of location of genetic traits?

A. Known protein coding sequences are too far apart to allow linkage determination for most new genes
B. Restriction sites allow DNAs to be digested
C. Protein-coding genes are always associated with a restriction pattern
D. None of the above

Answer: Option A

Explanation:

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8. 

In gel electrophoresis, DNA molecules migrate from __________ to __________ ends of the gel.

A. negative ... positive
B. basic ... acidic
C. long ... short
D. positive to negative

Answer: Option A

Explanation:

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9. 

Restriction enzymes

A. protect bacteria from viral infection
B. cut DNA in a staggered fashion
C. cut DNAs producing a blunt end
D. all of the above

Answer: Option D

Explanation:

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10. 

First discovered, Type II restriction endonuclease was

A. Hinf I
B. Eco K
C. Hind II
D. EcoRI

Answer: Option C

Explanation:

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