Once peptide bond formation occurs, translocation moves the ribosome one codon further along the mRNA. After translocation, what is the configuration of tRNAs and polypeptide on the ribosome?
What will be an ideal response?
Ans: The discharged tRNA moves from the P site to the E site, and the peptidyl-tRNA in the A site moves to the P site. The A site is now available for a new aminoacyl-tRNA to enter, and the A site is positioned over the next codon.
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What type of blood vessels has the slowest velocity of blood flow?
A) arteries B) arterioles C) veins D) capillaries
What would be the hypothetical outcome if the action of RecA was inhibited during the SOS response?
A. LexA would autolyse, and therefore the transcription of DNA repair genes would occur. B. LexA would not autolyse, and therefore the transcription of repair genes would occur. C. LexA would autolyse, and therefore the transcription of repair genes would not occur. D. LexA would not autolyse, and therefore the transcription of DNA repair genes would not occur.
Removing some fluid from directly around a developing human fetus is performed by inserting a long needle into the belly of the female patient. What extraembryonic membrane will be punctured in this process?
A. Amnion B. Chorionic villi C. External epithelium of mother D. Chorion
Please match the diseases with their most common portal of exit.
Tuberculosis, Influenza A) Respiratory tract (aerosols) B) GI tract (saliva droplets) C) Exudates from skin lesions D) GI tract (diarrhea) E) Reproductive tract (semen) F) Blood through a contaminated needle