Biology 2011

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Q. 6. The gametophyte is not an independent, free-living generation in

  1. Pinus
  2. Polytrichum
  3. Adiantum
  4. Marchantia

Sol:

In gymnosperms and angiosperms gametophytes are dependent on sporophyte.

Answer: (1)

 

Q. 7. Important site for formation of glycoproteins and glycolipids is

  1. Lysosome
  2. Vacuole
  3. Golgi apparatus
  4. Plastid

Sol:

Golgi complex performs glycosyl transferase activity for addition of glycans on lipids and proteins.

Answer: (3)

 

Q. 8.Peptide synthesis inside a cell takes place in

  1. Ribosomes
  2. Chloroplast
  3. Mitochondria
  4. Chromoplast

Sol:

Ribosomes are site of peptide bond formation.

Answer: (1)

 

Q. 9.   In eubacteria, a cellular component that resembles eukaryotic cell is

  1. Cell wall
  2. Plasma membrane
  3. Nucleus
  4. Ribosomes

Sol:

Lipoprotein cell membrane is found in both but ribosomes are of different kinds.

Answer: (2)

 

Q. 10. Mutations can be induced with

  1. Gamma radiations
  2. Infra Red radiations
  3. I A A
  4. Ethylene

Sol:

Mutation can be induced with high energy radiations like UV rays, gamma rays, which cause change in the structure of DNA.

Answer: (1)

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