P-protein occur only in certain legumes and are encoded by members of the gene family known as;

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#Question id: 142

#Unit 1. Molecules and their Interaction Relevant to Biology

Histidine has pKa values of 1.8, 6.0 (R-group) and 9.3 . At pH 8.0, the net charge on histidine is

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#Question id: 29490

#Unit 6. System Physiology – Plant

Some statement is given related to cytokinin regarding location, expression and synthesis and concentration

a. IPT1, IPT3, IPT5, and IPT8 are located in plastids

b. KNOX gene expression increases cytokinin levels in the shoot with the help of IPT7

c. Cytokinin Primary site of synthesis -- root tips.

d. High concentrations -- immature seeds and developing fruits

Which one of the following options represents the combination of all correct statements?

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#Question id: 4539

#Unit 3. Fundamental Processes

The yeast S. cerevisiae exists in three forms: two haploid cells of different mating types—a and alpha and the diploid formed when an a and an a cell mate and fuse. The a cell and the a cell each encodes cell-type-specific regulators: a cells make the regulatory protein a1, and alpha cells make the proteins alpha1 and alpha2. A fourth regulatory protein, called Mcm1, is also involved in regulating the mating-type-specific genes (and many other genes) and is present in both cell types which shows Combinatorial Control.

The arrangement of regulators at the promoters of a-specific genes and a-specific genes is

cell type:	gene regulatory proteins:	target genes:
1.a cell (haploid)	a1 Mcm1	aSG alphaSG
2.αlpha cell (haploid)	alpha 1 alpha 2 Mcm2	hSG
3.a/αlpha cell (diploid)	a1 Mcm2 alpha2

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#Question id: 19311

#Unit 4. Cell Communication and Cell Signaling

which of the following pathogen produces HC-toxin?

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#Question id: 16111

#Unit 7. System Physiology – Animal

When environmental temperature is less than body temperature, mechanisms are activated that: