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Academic Questions

During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded?

By Radhika Viswas on 15 Sep 21
  1. Hemicellulose

  2. Lipids

  3. Cellulose

  4. Lignin

Mitotic spindle is mainly composed of which proteins?

By Radhika Viswas on 15 Sep 21
  1. Actin

  2. Myosin

  3. Actomyosin

  4. Myoglobin

If DNA percentage of thymine is 20. What is the percentage of guanine?

By Radhika Viswas on 15 Sep 21
  1. 20%

  2. 40%

  3. 30%

  4. 60%

Lipids are insoluble in water because, lipid molecules are

By Radhika Viswas on 15 Sep 21
  1. Hydrophilic

  2. Hydrophobic

  3. Neutral

  4. Zwitter ions

Due to discovery of which of the following in 1980 the evolution was-termed as RNA world?

By Radhika Viswas on 15 Sep 21
  1. mRNA, tRNA, rRNA synthesize proteins

  2. In some virus RNA-is genetic material

  3. RNA have enzymatic property

  4. RNA is not found in all cells

Types of RNA polymerase required in nucleus for RNA synthesis

By Radhika Viswas on 15 Sep 21
  1. 1

  2. 2

  3. 3

  4. 4

Length of one turn of the helix in a B-form DNA is approximately

By Radhika Viswas on 15 Sep 21
  1. 3.4 nm

  2. 2 nm

  3. 0.34 nm

  4. 20 nm

Radioactive thymidine when added to the medium surrounding living mammalian cells gets incorporated into the newly synthesized DNA. Which of the following types of chromatin is expected to become radioactive if cells are exposed radioactive thymidine as soon as they enter the S-phase?

By Radhika Viswas on 15 Sep 21
  1. Heterochromatin

  2. Euchromatin

  3. Both (A) and (B)

  4. Neither heterochromatin nor euchromatin but only the nucleolus

The RNA that picks up specific amino acids from the amino acid pool in the cytoplasm to ribosome during protein synthesis is called

By Radhika Viswas on 15 Sep 21
  1. mRNA

  2. tRNA

  3. rRNA

  4. Carrier RNA

A polysaccharide, which is synthesized and stored in liver cells, is

By Radhika Viswas on 15 Sep 21
  1. Lactose

  2. Galactose

  3. Arabinose

  4. Glycogen

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