#Question id: 11410
#Unit 10. Ecological Principles
Biodiversity hot spots, those areas with the greatest number of endemic species. Which of the following criteria to qualify as a hot spot region?
A. It must contain at least 1,500 species of vascular plants as endemics
B. It must have lost at least 70% of its original habitat
C. It must contain at least 500 species of bird species
D- It must contain high numbers of species
#Question id: 23358
#General Aptitude
#Question id: 2637
#Unit 2. Cellular Organization
Which of these operons is anabolic?
#Question id: 10348
#Unit 6. System Physiology – Plant
During ammonium assimilation, requires two enzymes converting ammonium to amino acids. Each of which is Glutamine synthetase (GS), given below some statements about GS ;
a) GS transfers the amide group of glutamine to 2-oxoglutarate, yielding two molecules of glutamate
b) it requires a divalent cation such as Mg2+, Mn2+, or Co2+ as a cofactor
c) Plants contain two classes of GS, one in the cytosol and the other in root plastids or shoot chloroplasts
d) The cytosolic forms are expressed in germinating seeds or in the vascular bundles of roots and shoots and produce glutamate for intercellular nitrogen transport
e) The GS in root plastids generates amide nitrogen for local consumption; the GS in shoot chloroplasts reassimilates photorespiratory NH4+
f) Light and carbohydrate levels alter the expression of the cytosolic forms of the enzyme, but they have little effect on the plastid forms.
Which of the following statements is correct?
#Question id: 5081
#Unit 5. Developmental Biology
The vegetal pole of a frog zygote differs from the animal pole in that ________.