Biotechnology Archives | Page 28 of 31

An established cell line can be called where it has been subcultured at least

July 26, 2022 by admin

Question: An established cell line can be called where it has been subcultured at least
[A].

70 times at an interval of 3 days between subcultures

[B].

40 times at an interval of 3 days between subcultures

[C].

70 times at an interval of 1 day between subcultures

[D].

50 times at an interval of 3 days between subcultures

Answer: Option A

Explanation:

No answer description available for this question.

At low glucose concentration, below 0.25 mmol/litre, large portions of glucose and glutamine is shunted via

July 26, 2022 by admin

Question: At low glucose concentration, below 0.25 mmol/litre, large portions of glucose and glutamine is shunted via
[A].

oxidative pathway

[B].

anaerobic pathway

[C].

both (a) and (b)

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Accumulation of lactate leads to

July 26, 2022 by admin

Question: Accumulation of lactate leads to
[A].

increase in pH

[B].

no change in pH

[C].

reduction in the pH of culture hence loss of cell viability

[D].

no loss of cell viability

Answer: Option C

Explanation:

No answer description available for this question.

Excess CO2 suppress cell growth and productivity by

July 26, 2022 by admin

Question: Excess CO2 suppress cell growth and productivity by
[A].

inhibiting respiration

[B].

altering intracellular pH by diffusing across cell membrane

[C].

both (a) and (b)

[D].

altering pH of the medium

Answer: Option C

Explanation:

No answer description available for this question.

DNA into fish is injected into

July 26, 2022 by admin

Question: DNA into fish is injected into
[A].

pronuclei

[B].

cytoplasm

[C].

both (a) and (b)

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

In transgenic fish, the genes are introduced by

July 26, 2022 by admin

Question: In transgenic fish, the genes are introduced by
[A].

microinjection in fish

[B].

viruses

[C].

transfer of whole nuclei

[D].

all of these

Answer: Option A

Explanation:

No answer description available for this question.

Animal pharming can be defined as

July 26, 2022 by admin

Question: Animal pharming can be defined as
[A].

growing animals for farming

[B].

programming animals to produce novel products

[C].

generating transgenic animals for farming

[D].

none of the above

Answer: Option B

Explanation:

No answer description available for this question.

DNA microinjection into the egg has been used to produce which of the following transgenic animals?

July 26, 2022 by admin

Question: DNA microinjection into the egg has been used to produce which of the following transgenic animals?
[A].

Mice

[B].

Chicken

[C].

Pigs

[D].

All of these

Answer: Option D

Explanation:

No answer description available for this question.

DNA is microinfected into the fertilized egg

July 26, 2022 by admin

Question: DNA is microinfected into the fertilized egg
[A].

after the fusion of male and female nuclei

[B].

before the fusion of male and female nuclei

[C].

at the time of fusion of male and female nuclei

[D].

any time, it can be infected

Answer: Option B

Explanation:

No answer description available for this question.

Chromosomes may be isolated from metaphase cells by

July 26, 2022 by admin

Question: Chromosomes may be isolated from metaphase cells by
[A].

hypertonic lysis

[B].

hypotonic lysis

[C].

either (a) or (b)

[D].

isotonic lysis

Answer: Option B

Explanation:

No answer description available for this question.