Multiple Choice
In protein synthesis, what purpose does the peptide bond serve?
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4. Biomolecules
Proteins
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In a comparison of protein sequences between two species, at how many positions are the amino acids identical?
A
Half of the positions
B
All positions
C
No positions
D
Some positions
Verified step by step guidance1
Understand that protein sequences are made up of chains of amino acids, and comparing these sequences involves aligning them to identify similarities and differences.
Recognize that when comparing protein sequences between two species, the goal is to determine how many positions in the sequence have identical amino acids.
Consider the possible outcomes: all positions identical, no positions identical, half of the positions identical, or some positions identical.
Realize that in biological comparisons, it is common to find that some positions are identical due to evolutionary conservation, while others may differ due to mutations or adaptations.
Conclude that the most realistic scenario in biological comparisons is that some positions are identical, reflecting both conservation and variation in protein sequences between species.
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