Question

Q9:The chromosomes of some viruses and bacteria are ______ and often ______.

A

Option A: linear; single stranded

B

Option B: None of the above

C

Option C: linear; supercoiled

D

Option D: circular; single stranded

E

Option E: circular; supercoiled

Q 5:In A-DNA

A

Option A: the glycosidic bond conformation and sugar pucker is dependent on the base.

B

Option B: the glycosidic bond is in the anti conformation with a C2'-endo sugar pucker.

C

Option C: the glycosidic bond is in the syn conformation with a C3'-endo sugar pucker.

D

Option D: the glycosidic bond is in the syn conformation with a C2'-endo sugar pucker.

E

Option E: the glycosidic bond is in the anti conformation with a C3'-endo sugar pucker.

Q4: Which of the following can be determined from a Northern blot?

A

Option A: The stage-specificity of a gene transcript.

B

Option B: All of the above.

C

Option C: The abundance of a gene transcript.

D

Option D: The tissue specificity of gene transcript.

E

Option E: The size of a gene transcript.

Q 2:Which of the following is FALSE regarding DNA binding to proteins?

A

Option A: All of the above.

B

Option B: Most eukaryotic transcription factors contain a conserved DNA-binding basic region.

C

Option C: The basic regions typically bind in the major groove of its target DNA.

D

Option D: Eukaryotic transcription factors either contain an HTH motif or resemble the met repressor.

E

Option E: None of the above.

Answer 1