Translational regulation, Which of the following is an | Homework Help
1. If the genetic code were read in groups of four nonoverlapping nucleotides, using this nucleotide sequence, then the resulting amino acid sequence would be
A) B-D-B.
B) B-D-E.
C) D-D-D.
D) B-B-B.
E) none of the above
2. A mutant bacterium is isolated. This bacterial strain has the characteristic of very slow, “sickly” growth. You isolate mRNA from these bacteria to use in anin vitrotranslation system and note that even in vitroit is difficult to use this message and obtain protein. Of the following, which is a likely explanation for these results?
A) There may be a mutation in the ShineDelgarno sequence of the DNA, resulting in a RNA that poorly binds the ribosome.
B) In this mutant, the ribosomal subunits may not associate well enough for effective translation.
C) There may be a mutation in the ribosomal rRNA recognizing the Shine Delgarno sequence of the message.
D) This mutant may have altered tRNA molecules, such that the codon-anticodon interaction during translation is affected.
E) These bacteria may not manufacture enough translation factors for effective translation.
3. Which of the following is an example of translational regulation?
A) DNA splicing
B) protein degradation
C) protein folding
D) DNA methylation
E) mRNA degradation
4. You are working with a gene associated with an essential pathway that is necessary at two time points in an organism’s lifetime. With regard to gene regulation, you would expect the gene to be
A) “activated” by particular signals (induced).
B) not constitutive.
C) associated with response to distinct events.
D) “turned off” by particular signals (repressed).
E) all of the above
5. Within a genome, an enhancer may be located
A) upstream of the gene enhanced.
B) downstream of the gene enhanced.
C) within the gene enhanced.
D) choices A, B, and C
E) both choices A and B.
We've got everything to become your favourite writing service
Money back guarantee
Your money is safe. Even if we fail to satisfy your expectations, you can always request a refund and get your money back.
Confidentiality
We don’t share your private information with anyone. What happens on our website stays on our website.
Our service is legit
We provide you with a sample paper on the topic you need, and this kind of academic assistance is perfectly legitimate.
Get a plagiarism-free paper
We check every paper with our plagiarism-detection software, so you get a unique paper written for your particular purposes.
We can help with urgent tasks
Need a paper tomorrow? We can write it even while you’re sleeping. Place an order now and get your paper in 8 hours.
Pay a fair price
Our prices depend on urgency. If you want a cheap essay, place your order in advance. Our prices start from $11 per page.