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#Question id: 8897


Which of the following statements would be least acceptable to most zoologists?

#SCPH06 I Botany
  1. The extant cephalochordates (lancelets) are contemporaries, not ancestors, of vertebrates.
  2. The first fossils resembling cephalochordates appeared in the fossil record around 550 million years ago.
  3. Recent work in molecular systematics supports the hypothesis that cephalochordates are the most recent common ancestor of all vertebrates.
  4. The extant cephalochordates are the immediate ancestors of the fishes.
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#Question id: 17278

#SCPH01 Biochemistry

In DNA isolation, which of the following enzyme remove/digest proteins in presence of SDS or chelating agent

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#Question id: 1586

#SCPH28 | Zoology

In which of the cases would the precaution likely be taken to give the mother anti-Rh antibodies before delivering her baby?

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#Question id: 1052

#SCPH28 | Zoology

The correct order for the stages of a phage infection is:

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#Question id: 3620

#SCPH06 I Botany

Which of the following word is a short form of allelomorph?

TLS Online TPP Program

#Question id: 10348

#SCPH05 I Biotechnology

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?