« previous next »

Author Question: What is the effect of a nonsense mutation in a gene? A) It changes an amino acid (Read 581 times)

Yolanda

  • Hero Member
  • *****
  • Posts: 757
on: Jun 25, 2013
What is the effect of a nonsense mutation in a gene?
A) It changes an amino acid in the encoded protein.
B) It has no effect on the amino acid sequence of the encoded protein.
C) It introduces a premature stop codon into the mRNA.
D) It alters the reading frame of the mRNA.
E) It prevents introns from being excised.


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Jun 27, 2013
It's C. Have a nice day!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Yolanda

  • Hero Member
  • *****
  • Posts: 757
Reply #2 on: Jul 5, 2013
Thanks COCO :D


« previous next »
 

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Mutant sites in the PKU gene Mutant sites in the PKU gene
Evolutionary tree derived from amino acid sequence comparisons Evolutionary tree derived from amino acid sequence comparisons
Citric Acid Cycle Citric Acid Cycle
Galactose gene expression Galactose gene expression
Phylogenetic tree constructed by comparing homologies in cytochrome c amino acid sequences Phylogenetic tree constructed by comparing homologies in cytochrome c amino acid sequences
Lethal Mutation Affecting Somites Lethal Mutation Affecting Somites
Video: hGH, Thyroid hormones & Aldosterone

For a complete list of videos, visit our video library