What Is the Effect of a Nucleotide-Pair Substitution That Results

question 66

Multiple Choice

What is the effect of a nucleotide-pair substitution that results in 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.

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Definitions:

Renal Pyramid

Cone-shaped structures located in the kidneys, consisting of tubules that transport urine from the cortical, outer part of the kidney to the calyces and renal pelvis.

Hilum

The hilum is a depression or notch where structures such as blood vessels and nerves enter or exit an organ.

Renal Vein

A vein carrying filtered blood away from the kidney back towards the heart.

Renal Pelvis

The funnel-shaped structure in the kidney that collects urine from the nephrons and channels it into the ureter.