3. The cap that is added to the RNA during processing: (Select all that apply.)

Question

3. The cap that is added to the RNA during processing: (Select all that apply.) is needed for ribosomes to attach to messenger RNA. helps prevent rapid breakdown of the messenger RNA. helps prevent formation of complex three-dimensional structures in the messenger RNA. aids in the accuracy of translation of the messenger RNA into protein. 4. Which one of the following explains why rRNAs are the most abundant type of RNA in a mammalian cell? There are more different types of rRNA genes than all other types of genes combined. needed. None of the other answer options is correct. rRNAs are not the most abundant type of RNA in a mammalian cell. A different type of ribosome is needed to synthesize all of a celrs proteins, and because most proteins are present in mutiple copiens, a huge number of rbosomes are takes several rRNAs to transcribe a single mRNA, so there are many more rRNAs needed in a cell than the number of proteins synthesized There are rRNAs in ribosomes, and it takes millions of ribosomes to translate all the proteins required for a cell's functions It

Explanation / Answer

The statements 1 and 2 are correct regarding capping of RNA during processing.

Explaination:

A 7 methyl guanosine cap is added to the 5' end of the pre m RNA during elongation process.

The 5' cap protects the nascent mRNA from degradation by RNAses and assists in ribosome binding during translation.

2. The answer is statement 5.

The rRNA are abundant in mammalian cell because there are r rnas in ribosomes and it takes millions of ribosomes to translate all the proteins required for the cell function.

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