Year 1900 was significant for geneticists due to__________________?

Related Mcqs:

1. In a monohybrid cross, 2 heterozygous individuals were crossed, phenotypic ratio came to be (2:1), it is due to__________________?

   A. Dominant lethal genes in heterozygous individuals
   B. Dominant lethal genes in homozygous individuals
   C. Dominant epistasis
   D. None of the above

2. The smell in onion bulb is due to__________________?

   A. bad odour of the soil
   B. Much sugar
   C. Sulphur components
   D. Fleshy leaves

3. Chilling injury in fruits occurs due to__________________?

   A. Accumulation of ethanol
   B. Accumulation of acetaldehyde
   C. Accumulation of toxic compounds
   D. All the above

4. The flavor of butter, milk and cheese due to__________________?

   A. Long chain fatty acids
   B. Short chain fatty acids
   C. Saturated fatty acids
   D. Unsaturated fatty acids

5. Slipperiness is due to__________________?

   A. Covalent bond
   B. Vander walls forces
   C. Wire bond
   D. None of the above

6. Permanent change in soil is due to__________________?

   A. Ionic bonding
   B. pH change
   C. Covalent bonding
   D. Isomorphic substitution

7. Nobel prize for the discovery of operon model was awarded to__________________?

   A. Jacob and monod (1965)
   B. Crick (1966)
   C. Watson and Crick (1953)
   D. Briuen and Davidson (1959)

8. Eugenics refers to__________________?

   A. Science concerned with improvement of heredity of animals
   B. Science concerned with improvement of heredity of human race
   C. Experimental alterations in the structure of the genes
   D. Genetics of eukaryotes

9. Meiosis is significant because___________________?

   A. Produces identical cells
   B. Restores original number of chromosomes
   C. Occurs only in somatic
   D. Doubling of DNA content in the cell

10. Pakistan being predominantly an arid and semiarid country, In addition to agricultural productivity losses and increasing poverty, desertification results in significant reductions in _________?

    A. Contributing to global warming
    B. Carbon storage in soils
    C. loss of biodiversity
    D. All of these

    Submitted by: Shafiq Rehman