Multiple Choice Questions

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Bud dormancy is induced by

  • ABA

  • ethylene

  • IAA

  • gibberellic acid


A.

ABA

The bud dormancy is induced by adantscissic acid (ABA). The level of endogenous ABA increases with the onset of dormant period and decreases when it is broken.


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Which of the following digestive juices has the minimum pH value?

  • Bile

  • Gastric juice

  • Saliva

  • Pancreatic juice


The ganglia of sympathetic and the central nervous system in frog develops from the

  • neural cell

  • neural plate cells

  • notochordal cells

  • neural crest cells


Ambulacral grooves are absent in the living forms of the Class

  • Crinoidea

  • Asteroidea

  • Ophiuroidea

  • Echinodermata


The photorespiratory carbon-oxidation cycle involves the interaction of

  • chloroplast

  • mitochondria

  • peroxisomes

  • all of these


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Excretion in cockroach takes place by

  • nephridium

  • parotid gland

  • coxal glands

  • malpighian tubules


Glycolysis is found in cytoplasm of virtually all types of aerobic/ anaerobic cells. In this process glucose is converted into

  • PEP

  • acetyl CoA

  • pyruvic acid

  • citric acid


A chromosome carrying the centromere at one of the ends is called

  • acentric

  • submetacentric

  • telocentric

  • metacentric


Which of the following is related to glycosylation of protein?

  • Lysosome

  • Mitochondrium

  • Peroxisome

  • Rough endoplasmic reticulum


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Which of the following teeth are lophodont?

  • Incisor and canine

  • Canine and premolar

  • Premolar and molar

  • Premolar and incisor