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Botany

Home > Botany (37)
Q31. Identify the incorrect statement regarding cyanobacteria:
  • They have chlorophyll a (similar to green plants)
  • They are unicellular and never colonial or filamentous
  • They often form blooms in polluted water bodies
  • Some of them can fix atmospheric nitrogen
Q32. Which one of the following statements cannot be connected to Predation? 
  • It is necessitated by nature to maintain the ecological balance .
  • It helps in maintaining species diversity in a community.
  • It might lead to the extinction of a species.
  • Both the interacting species are negatively impacted.
Q33. Which of the following is a dominant trait in Pisum sativum?
  • Yellow pod colour
  • Green seed colour
  • Axial flower position
  • Constricted pod shape
Q34. Alec Jeffreys pioneered the technique for:
  • DNA profiling
  • Amplification of DNA
  • Separation of DNA fragments in gel electrophoresis
  • Artificial synthesis of gene
Q35.

Stem tendrils are not seen in:

  • Grapevine
  • Watermelon
  •  Citrus
  • Cucumber
Q36.

Cyclosporin A is used as a/an:

  • immuno-suppressive agent in organ transplant patients
  • clot buster to remove clots from the vessels in heart attack patients
  • treatment option in advance for HIV infections
  • agent that lowers blood cholesterol levels
Q37.

Consider the given two statements:

Of the two statements:

1. Both I and II are correct

2. Only I is correct

3. Only II is correct

4. Both I and II are incorrect

  • I:
  • The use of biocontrol measures totally eliminates the use of chemical pesticides by an organic farmer.
  • II:
  • In organic farming, the pests are completely eliminated by biocontrol.
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