Quiz 10 To 13

Question 1

Which of the following is true about Rpb4/7?

Answer 1

It extends the dock region of polymerase, making it easier for transcription factors to bind.

Question 2

There are at least …. subunits in RNA polymerase II in yeast

Answer 2

12

Question 3

Which of the following about ribosomal genes is true?

Answer 3

There are repetitive sequences.

Question 4

All three yeast polymerases have

Answer 4

Rpb8 and Rpd10

Question 5

What will you expect if the gene for the hRPB1 subunit of RNA polymerase II is deleted?

Answer 5

non-viable cells

Question 6

TFIID collaborates with TFIIE to bind to the TATA box. (T/f)

Answer 6

False

Question 7

Which can be considered as the minimal transcription initiation complex?

Answer 7

DABPolF

Question 8

In eukaryotes, which of the following is not part of the Class II preinitiation complex (for transcription)?

Answer 8

TFIIC

Question 9

Determine which of the following would most likely lead to a dramatic reduction in transcription.

Answer 9

absence of the TATA box

Question 10

Which general transcription factor phosphorylates RNA polymerase II that can carry out transcription elongation

Answer 10

TFIIH

Question 11

Histone _______ proteins is the most conserved from one organism to another?

Answer 11

H3

Question 12

Acetylation of histones can take place in the

Answer 12

nucleus and cytoplasm

Question 13

H2A proteins space the nucleosomes properly on chromatin that favors 30-nm fiber formation. (T/f)

Answer 13

False

Question 14

Which of the following is FALSE for histones?

Answer 14

Unusually acidic

Question 15

Most of the chromatin in a typical interphase nucleus is in the form of

Answer 15

30nm fiber

Question 16

Transcriptional activators have both DNA-binding and activation domains that function independently.. (t/f)

Answer 16

True

Question 17

Which of the following do you think could improve most the translocation of thyroid hormone receptor into the nucleus?

Answer 17

Sumoylation

Question 18

_____________ receptors interact with endocrine-signaling molecules

Answer 18

Nuclear

Question 19

Transcription activators help to boost transcription by recruiting _______________ to promoters

Answer 19

Rna Poly