Explanation:
an allele is an alternative form of a particular gene whereas a trait is the character that is determined by the allele.
Answer:
(C) Aminoacyl-tRNA synthetases have an additional active site that binds to non-cognate tRNAs. The tRNAs that bind to this second active are hydrolyzed and released from the enzyme.
Explanation:
In case of translation, proof reading is done by aminoacyl-tRNA synthetases only. Aminoacyl-tRNA synthetases have two mechanisms to avoid error during translation which are mentioned as under:
<u>(1) Chemical proof reading:</u> Incorrect amino acids rather than being hydrolyzed in catalytic pocket get hydrolyzed in editing pocket and thus they hardly get attached to tRNA.
For example: For distinguishing similar amino acids like isoleucine and valine, isoleucyl-tRNA synthetase uses a second active site which is meant for only valine not for isoleucine. In this particular site, valine which had entered the enzyme is cleaved away with the help of editing reaction after which the enzyme is well prepared to process isoleucine which is the correct amino acid for this enzyme.
<u>(2) Kinetic proof reading: </u>Even if an incorrect amino acid has entered a particular aminoacyl-tRNA synthetase, it does not cause appropriate conformational change in the enzyme because of which the incorrect amino acid loosens from the enzyme and does not get incorporated.
Note: In this example, only chemical proof reading is mentioned not kinetic proof reading.
Reproduction is the function of both living <u>plants</u> and organisms.
<h3>What is reproduction?</h3>
Reproduction can be defined as a biological process through which all living organisms (parents) produce their offspring, especially through mating.
<h3>The types of reproduction</h3>
Basically, there are two (2) main types of reproduction and these include;
Generally, reproduction is one of the main characteristics of a living organism and plants.
In conclusion, reproduction is a function that is peculiar to both living <u>plants</u> and organisms.
Read more on reproduction here: brainly.com/question/2538465
The answer is true, plants often have minerals as in elements like iron.
<span>What type of blood vessel is A?
The blood vessel is a artery
It carries blood away from the heart. Hope this helps. :)
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