Practice Questions

TLS Online TPP Program

#Question id: 4350

Portions of the DNA sequences of normal and mutant b-globin genes are shown. The most plausible explanation for why the indicated mutation (changing an A to a G) results in the disease b-thalassemia is that the mutation

#Unit 3. Fundamental Processes

changes the amino acid specified by the codon of which the altered base is part
generates a recognition site for a restriction enzyme, so the gene is cut in two
creates a new splice site, so that a portion of the intron is not removed
results in an increase in the transcription of the b-globin gene

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TLS Online TPP Program

#Question id: 23081

#Unit 12. Applied Biology

pH of culture medium is initially controlled by

TLS Online TPP Program

#Question id: 23082

#Unit 12. Applied Biology

The technique of organ culture may be divided on the basis of employing

a) solid medium

b) liquid medium

c) semi-solid medium

TLS Online TPP Program

#Question id: 23083

#Unit 12. Applied Biology

Sometimes cell lines can be cultured for such a long time that they apparently develop the potential to be subcultured indefinitely in vitro. Such cells lines are called

TLS Online TPP Program

#Question id: 23084

#Unit 12. Applied Biology

Which of the following is the technique used for the embryo culture?

TLS Online TPP Program

#Question id: 23085

#Unit 12. Applied Biology

The major problem associated with the isolation of free cells and cell aggregates from organs is that of

TLS Online TPP Program

#Question id: 23086

#Unit 12. Applied Biology

______________ is an example of a physical method of sterilization,