Question 16 (1 point) In eukaryotes, general transcription factors such as TFIID

Question

Question 16 (1 point)

In eukaryotes, general transcription factors such as TFIID bind to the operator region upstream of the gene.

Question 16 options:

Save

Question 17 (1 point)

Which of the following is NOT a transcription factor structural motif?

Question 17 options:

helix-turn-helix

zinc zipper

leucine zipper

basic helix-loop-helix

All the above are transcription factor structural motifs

Save

Question 18 (1 point)

Co-activators and co-repressors regulate gene expression by binding to sequences of DNA upstream of the promoter.

Question 18 options:

Save

Question 19 (1 point)

mRNA regulation can be achieved at the level of

Question 19 options:

transport.

processing.

translation.

life span (degradation).

All of these

Save

Question 20 (1 point)

A series of cell-specific changes in gene expression that determine a cell’s structure and function within an organism is known as:

Question 20 options:

Differentialism

Differentiation

Totipotency

Dollyism

Save

Question 21 (1 point)

An adult epithelial cell is no longer totipotent, but it can be treated with certain factors to induce it to become totipotent.

Question 21 options:

Save

Question 22 (1 point)

The cell cycle is tightly regulated by:

Question 22 options:

the presence of certain growth factors.

cyclins.

cyclin-dependent protein kinases.

all of the above are involved in cell cycle regulation

Save

Question 23 (1 point)

There are certain genes that encode proteins which are responsible for regulating cell proliferation. If these genes become mutated they are called:

Question 23 options:

Oncogenes.

Proto-oncogenes.

Tumor suppressor genes.

Mutator genes.

Save

Question 24 (1 point)

All of the following are invovled in cancer progression except:

Question 24 options:

Unregulated cell growth

Angiogenesis

Metastasis

Downregulation of "anti-cancer" genes

All are involved in cancer progression

Save

Question 25 (1 point)

Which of the following is NOT true concerning peptide hormones?

Question 25 options:

Insulin and growth hormone are examples.

Binding to target cells may activate kinases and start a protein kinase cascade.

They bind to receptors at the outer surface of a target cell.

Their ultimate function is to activate transcription of specific genes.

All are true.

Explanation / Answer

1 True statement. In eukaryotic transcription, the transcription genes require the action of RNA polymerase to bind to a sequence upstream of gene to intitiate transcription. In eukaryotes, transcription factors first bind to the promoter to initiate transcription.

2. Answer is option e. All the options given in the question describes the transcription factor.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects