Answer:
a. Bacteria cannot carry out splicing.
Explanation:
Human genes contain non-coding sequences called introns. Transcription of genes produces primary transcripts that undergo post-transcriptional modifications to produce mature mRNA. These modifications include removal of introns, the addition of 3' poly-A tail and 5' cap. The splicing of introns from primary transcripts is followed by ligation of protein-coding sequences exons to produce mature mRNA. The mRNA leaves the nucleus and serves as a template for protein synthesis.
Splicing of introns requires specific machinery such as several small nuclear ribonucleoprotein complexes, etc. which are not present in a prokaryotic cell. Therefore, a eukaryotic gene like the gene for human growth hormone is not expressed in a bacteria cell as these prokaryotic cells cannot carry out the splicing of introns from pre-mRNA.
single stranded
<h3>
What is RNA virus?</h3>
- Deoxyribose and ribose, respectively, are the names of the pentose sugars found in DNA and RNA.
- The presence of the hydroxyl group on the 2' carbon of ribose and its lack on the 2' carbon of deoxyribose distinguishes the sugars.
- While the sugar used to construct both DNA and RNA is named deoxyribose (left in the image), the sugar used to construct RNA is simply referred to as ribose.
- Ribose, a 5-carbon sugar, is present in RNA, whereas deoxyribose, a 5-carbon sugar, is present in DNA.
- Both kinds of sugar are crucial parts of nucleotides.
- Pentose sugars, which are a component of DNA, can be found in nucleic acid.
Learn more about RNA here:
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Answer:
plants are better on sand dunes
Explanation:
sand dunes pertecs city from storms and strong waves and strong winds
