Hypothetical patterns of change in the relationship of plants and their endophytic symbionts along a gradient of increasing abiotic stress, which of the following is correct? 

#Question id: 792

#SCPH06 I Botany

Which arm of the tRNA can act as a structural recognition feature?

#Question id: 793

#SCPH05 I Biotechnology

What is the average size (in bp) of a mature t-RNA?

#Question id: 794

#SCPH05 I Biotechnology

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which structural feature is found in the single-stranded DNA molecule?

#Question id: 795

#SCPH05 I Biotechnology

A single-stranded DNA molecule contains 40 nucleotides and has the sequence 5’-(GA)20-3’. When this single strand binds to a complementary DNA strand,

#Question id: 796

#SCPH05 I Biotechnology

Which statement best describes the distinction between the purposes of the two RNAi pathways within the eukaryotic cell?

#Question id: 797

#SCPH05 I Biotechnology

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.