If a particular operon encodes enzymes for making an essential amino acid and is regulated like the trp operon, then

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#Question id: 785

#SCPH05 I Biotechnology

Several types of very short RNAs repress—or silence—expression of genes with homology to those short RNAs. They are produced from a variety of sources and direct the silencing of genes in the following different ways-

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#Question id: 13109

#SCPH01 Biochemistry

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 

You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.

 

 which number of repeats did Baby C inherit from his mother?

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#Question id: 5130

#SCPH01 Biochemistry

Regulation by gradients of paracrine factor concentration was elegantly demonstrated by the specification of different mesodermal cell types in the frog Xenopus laevis by activin, a paracrine factor of the TGF-beta family. Which of the following observations are correct from this graph?

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#Question id: 23149

#SCPH06 I Botany

In fluorescence microscopy a usually used fluorochrome that is fura-2 is sensitive to which ions?

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#Question id: 5302

#SCPH28 | Zoology

Using modern techniques of sequencing by synthesis and the shotgun approach, sequences are assembled into chromosomes by ________.