<span>D. It contains the cell’s DNA and RNA </span>
The correct option is C.
Post transcriptional control of gene expression refers to the process by which primary transcripts of RNA, which are formed in the nucleus of eukaryotic cells are converted into mature RNA. The process occurs after transcription and prior to translation.
In eukaryotic cells generally, gene expression is typically controlled at the transcription level. The process of post transcriptional occurs in two stages; the first stage is called RNA splicing stage and the second stage involves the control of RNA stability.
RNA SPLICING Stage: The primary RNA transcript is made up of two different regions, the exons regions, which code for proteins and the introns regions, which do not code for any protein. At the RNA splicing stage, the introns are spliced and removed from the RNA strand. This is the reason why option C is correct.
The second stage involves the addition of protective caps to the two ends of the RNA strands. These caps prevent the degradation of the RNA strand, thus, making it stable.
After this process, the mature RNA that has just been formed leaves the nucleus and move to the cytoplasm area of the cell, ready to carry out the process of protein translation.
The blood vessel(s) that have a major effect on blood pressure and control blood distribution to different areas of the body are called <u>Arteries and arterioles.</u>
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<h3>What are arteries and arterioles?</h3>
The arteries, which are strong, flexible, and resilient, carry blood away from the heart and bear the highest blood pressures. Because arteries are elastic, they narrow (recoil) passively when the heart is relaxing between beats and thus help maintain blood pressure.
The arteries branch into smaller and smaller vessels, eventually becoming very small vessels called arterioles. Arteries and arterioles have muscular walls that can adjust their diameter to increase or decrease blood flow to a particular part of the body.
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Learn more about the major divisions of heart
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<span>The answer is endoderm
Hope that helped
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