What Is the Minimum Number of Different Aminoacyl-TRNA Synthetases Required

question 26

Multiple Choice

What is the minimum number of different aminoacyl-tRNA synthetases required by a cell?

• A) 64, one for each codon
• B) 61, one for each sense codon
• C) 30, one for each different tRNA
• D) 50, one for each different tRNA
• E) 20, one for each amino acid

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Definitions:

Blind Spot

The area in the visual field that lacks detection by the retina due to the absence of photoreceptor cells where the optic nerve exits the eye.

Retina

The thin inner surface of the back of the eyeball; this surface contains the sensory receptors.

Pupil

the black circular opening in the center of the iris of the eye, which regulates the amount of light that enters the eye.

Sensation

The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.