With respect to microRNAs, which, if any, of the following statements, is FALSE?)

A. MicroRNA genes often occur in gene clusters within introns of protein-coding genes and are usually transcribed by RNA polymerase II.

B. Like an mRNA a miRNA is initially produced as a larger precursor RNA that, like the great majority of mRNAs, usually has a 5’ cap and a poly(A) tail.

C. MicroRNAs are produced by germ-line cells only.

D. A miRNA is initially produced as a duplex RNA but in order to work it needs to be converted into a single-strand RNA.

E. MicroRNAs usually work as transcription factors.

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#Question id: 14803

#Part-A Aptitude & General Biotechnology

The percentage SIMILARITIES and IDENTITIES, respectively, between the two peptide sequences given below will be ______% and _____%.

Peptide I :

Ala-Ala-Arg-Arg-Gln-Trp-Leu-Thr-Phe-Thr-Lys-Ile-Met-Ser-Glu

Peptide II:

Ala-Ala-Arg-Glu-Gln-Tyr-Ile-Ser-Phe-Thr-Lys-Ile-Met-Arg-Asp

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#Question id: 14804

#Part-B Specialized Branches in Biotechnology

Calculate the percentage sequence identity for the pairwise alignment given below: 

                       H E L L O _

                       Y E L L O W

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#Question id: 14804

#Part-A Aptitude & General Biotechnology

Calculate the percentage sequence identity for the pairwise alignment given below: 

                       H E L L O _

                       Y E L L O W

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#Question id: 14822

#Part-B Specialized Branches in Biotechnology

Which of the following pertains to Borrelia burgdorferi?

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#Question id: 14831

#Part-B Specialized Branches in Biotechnology

A spirochete is a member of the phylum Spirochaetota, which contains distinctive diderm gram-negative bacteria, most of which have long, helically coiled cells. Movement of spirochetes occurs by means of structures called 

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#Question id: 14835

#Part-B Specialized Branches in Biotechnology

There are three main ways in which inducing signals may be passed between cells EXCEPT