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Mandarinka [93]
3 years ago
14

During which process is mRNA synthesized from a DNA template with the aid of RNA polymerase?

Biology
1 answer:
Anika [276]3 years ago
7 0

Answer: The correct answer is A) Transcription.

Transcription is a genetic process by which the genetic information from a template of DNA (deoxyribonucleic acid) is copied into mRNA (messenger RNA). It is mediated by the enzyme called RNA polymerase. It occurs in nucleus of eukaryotes and cytoplasm of prokaryotes.

mRNA thus produced in this process, contains codons (a sequence of three nucleotides coding for a particular amino acid) that help in the synthesis of proteins through a process called translation.


Thus, option A) Transcription is the right answer.

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Is the correct order in a homeostatic feedback system stimulus, receoptor, control centre, effector?
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Answer:

Correct

Explanation:

Homeostatic is nothing but ability of a system or living organism to manipulate its internal environment to maintain a stable equilibrium, for example the ability of warm-blooded animals to ascertain a constant body temperature.

The Homoeostatic feedback mechanism has three basis components and they are independent to one another.

These components are receptor, effector and integrating center. The function of receptor is to sense external stimuli and send information to integrating center. The integrating center generally hypothalmus in brain sends this signal to effector for example an organ to react to the stimuli.

So, the order  in a homeostatic feedback system stimulus, receoptor, control centre, effector is correct.

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