There are at least a dozen known species in the extinct genus Lystrosaurus. If each species was suited to a quite different environment, then this relatively large number of species is likely due to

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#Question id: 18928

#Unit 13. Methods in Biology

With respect to nucleic acid hybridization, which, if any, of the following statements is false?

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#Question id: 2437

#Unit 2. Cellular Organization

Membrane extension involves

a. bending actin filaments.                   

b. myosin II.

c. the Arp2/3 nucleation of new filaments.

d. actin depolymerization.     

e. actin polymerization.

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#Question id: 29587

#Unit 6. System Physiology – Plant

Following are given stages of gibberellin biosynthetic pathway;

a) Geranylgeranyl diphosphate (GGPP) is converted to ent-kaurene  via copalyl diphosphate (CPP) in endoplasmic reticulum

b) In the endoplasmic reticulum, conversion of ent-kaurene into GA12 or GA53 depending on whether the GA is hydroxylated at carbon 13

c) the conversion of GA12 or GA53 into other GAs in cytosol proceeds with a series of oxidations at carbon 20

d) GA20 is then oxidized to the active gibberellin, GA1, by a 3β-hydroxylation reaction

Which of the following is the correct statements of GA biosynthesis?

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#Question id: 30051

#Unit 7. System Physiology – Animal

Which of the following normally has a slowly depolarizing “prepotential”?

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#Question id: 18843

#Unit 13. Methods in Biology

Which of the following reagent is used for quantifying DNA