Suppose that a 40-residue segment of a protein folds into a two-stranded antiparallel β structure with a 4-residue hairpin turn. What is the longest dimension of this motif?

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#Question id: 3858

#Part-A Aptitude & General Biotechnology

The 5' methyl guanosine caps added during RNA chain elongation performs what function?

1. prevents degradation by nucleases 

2. are recognized by protein factors

3. are used to identify the type of RNA

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#Question id: 3859

#Part-A Aptitude & General Biotechnology

Polyadenylation is:

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#Question id: 3860

#Part-A Aptitude & General Biotechnology

Guide RNAs:

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#Question id: 3861

#Part-A Aptitude & General Biotechnology

_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.

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#Question id: 3862

#Part-A Aptitude & General Biotechnology

The largest gene characterized to date is:

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#Question id: 3863

#Part-A Aptitude & General Biotechnology

Introns in nuclear pre-mRNAs are excised by: