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A homeobox is a: A. Transcriptional activator of other genes B. Protein involoved in the control of meisosi C. DNA binding site D. Sequence that codes for DNA binding motif

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Related questions

QUESTION 1

The RNA recognition motif is the most common RNA-binding domain in hnRNP proteins. Another name for this motif is:

A) all are correct

B) RNA-binding domain

C) KH motif

D) RNA motif

QUESTION 2

In an experiment you have used recombinant DNA technology to create hnRNP C protein tagged with green fluorescent protein and hnRNP A1 protein tagged with red fluorescent protein. What would you expect to see when the proteins are expressed and visualized in Xenopus cells?

A) red fluorescence only in the nucleus

B) green fluorescence only in the cytoplasm

C) red fluorescence only in the cytoplasm

D) green and red fluorescence in the nucleus

QUESTION 3

Mutations that affect the binding of an SR protein to an exonic splicing enhancer can cause exon skipping in some genes, producing mRNAs that when translated yield nonfunctional proteins. In addition to an RNA-binding domain, SR proteins also contain an RS domain that is involved in binding:

A) none of the above

B) RNA

C) protein

D) DNA

7. Which of the following statements is true?

a. Hormone binding to nuclear receptors induces their movement from the nucleus to the

nucleolus in order to promote rDNA transcription.

b. Activation domains across eukaryotic species are often rich in basic amino acid residues.

c. The sequence and structure of the linkages between activator and DNA-binding domains in

transcriptional activator proteins are keys for their function.

d. Multiple types of activation domains are activated by the binding of other molecules such as

co-activators and ligands.

- Review the levels of control of gene expression that include:

1. Chromatin structure and role of chemical modifications of DNA and histones, as

the first Γ’Β€ΒœonҀ switch for turning on eukaryotic gene expression. Define the term

epigenetics.

2. Structural components of eukaryotic genes: coding and proximal and distal

regulatory sequences (enhancers and silencers), and their function. Role and

binding sites of transcription factors and activator and repressor proteins.

3. Transcriptional and post transcriptional levels

4. Pre and post translational control levels

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