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CSIR-UGC-JRF-NET Life Sciences: Evolution Previous Questions

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CSIR Notes
1. Group of members which are morphologically identical but genetically different are termed as (June 2006)
a) Sibling species
b) Taxonomic species
c) Biological species
d) Morphospecies


2. Occurrence of similar morphological forms in clade at different interval is termed as (June 2006)
a) Iterative
b) Convergent
c) Co evolution
d) Parallel evolution
3. Groups of members which cannot interbreed freely are termed as (June 2006)
a) Sibling species
b) Taxonomic species
c) Biological species
d) Morphospecies

4. Speciation occurring due to geographical barrier is termed as (June 2006)
a) Allopatric
b) Sympatric
c) Parapatric
d) Peripatric

5.  During evolution increased ornamentation in male is a result of (June 2009)
a) sexual selection
b) natural selection
c) directional selection
d) co evolution

6. Hardy-Weinberg law in a population represents (June 2006)
a) Genotype frequency
b) Allele frequency
c) Heterozygote frequency
d) Homozygote frequency

7. If the two or more morphological forms are favoured against heterozygotes such as selection is termed as (June 2006)
a) Disruptive
b) Directional
c) Stabilizing
d) Cyclic

8.  Maximum diversity of reptiles was during (June 2006)
a) Jurassic
b) Triassic
c) cretaceous
d) Ordovician
9. Wings of insects and birds have become flat, large and stream lined. This is an example of (June 2006)
a) co evolution
b) convergent evolution
c) divergent evolution
d) parallel evolution
10. The present concept for origin of life is (June 2006)
a) At hydrothermal vents
b) On land
c) Pangenesis
d) In mid oceans

11. Which is correct sequence of evolution of human culture and civilization? (June,2009)
a) Cave painting>burial>agriculture> pottery
b) Cave painting>agriculture>burial> pottery
c) Cave painting> pottery>agriculture>burial
d)Cave painting> pottery>burial>agriculture

12. Genetic drift occurs by (Dec 2006)
a) mutation
b) immigration
c) emigration
d) chance

13. Numerical taxonomy involves (Dec,2006)
a) molecular taxonomy
b) overall similarity
c) phylogenetic similarity
d) morphological similarity

14. The development of social behaviour is related to (Dec 2006)
a) genetic relatedness
b) size of organism
c) size of population
d) brain size and complexity

15. The organism with high parental care will also show (Dec,2006)
a) small size of offsprings
b) maturation at early stage
c) iteroparity
d) semelparity
Answers:
  1. a) Sibling species
  2. a) Iterative
  3. c) Biological species
  4. a) Allopatric
  5. a) sexual selection
  6. a) Genotype frequency
  7. a) Disruptive
  8. c) cretaceous
  9. b) convergent evolution
  10. a) At hydrothermal vents
  11. b) Cave painting>agriculture>burial> pottery
  12. d) chance
  13. c) phylogenetic similarity
  14. d) brain size and complexity
  15. c) iteroparity


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