Meiosis is significant because___________________?

Related Mcqs:

1. When a cell with 40 chromosomes undergoes meiosis each of the four resulting cells has_____________________?

   A. 10 chromosomes
   B. 20 chromosomes
   C. 40 chromosomes

2. In meiosis homologous chromosomes separate from each other in ______________________?

   A. metaphase I
   B. Auaphase I
   C. Metaphase II
   D. Anaphase II

3. If the cell of an organism (heterozygous) for two pairs of genes represented by Aa, Bb, undergoes meiosis then the possible genotype of gametes are________________?

   A. AB, ab
   B. Ab, ab
   C. AB, Ab, aB, ab
   D. Data insufficient

4. When an albino plant of maize (female) is crossed with normal green plant (male) all plants in the progeny are albino because___________________?

   A. Albinism is dominant over green characters
   B. Green plastids of male parent become nitrated
   C. Plastids are inherited through maternal parents
   D. Crossing over results in structural changes in green plastids

5. Year 1900 was significant for geneticists due to__________________?

   A. Discovery of gene
   B. Principles of linkage
   C. heredity theory
   D. Rediscovery of Mendel’s

6. 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

7. Who coined the term genetic flexibility and phenotypic flexibility___________________?

   A. Hardy (1908)
   B. Thoday (1953)
   C. Salisbury (1940)
   D. Muller (1950)

8. Heat, cold and frost resistance ideotype have been developed in_____________________?

   A. Cereals
   B. Pulses
   C. Millet
   D. None of the above

9. A mutation is a change in_________________?

   A. Chromosome number
   B. RNA
   C. DNA
   D. Chromosome structure

10. If the haploid number of chromosomes in a plant is 12, then the number of chromosomes in monosmic is_________________?

    A. 12
    B. 24
    C. 22
    D. 23