1. Paedogenesis is found in the larvae of :
( A ) Taenia
( B ) Fasciola
( C ) Rana
( D ) Butterfly
Answer-( B )
2. Oblique binary fission is found in :
( A ) Monocystis
( B ) Plasmodium
( C ) Planaria
( D ) Ceratium
Answer-( D )
3. Which one has the capacity to reproduce without fertilization of f 1 eggs ?
( A ) Spider
( B ) Crow
( C ) Honey bee
( D ) Earthworm
Answer-( C )
4. In animals , juvenile phase is followed by :
( A ) vegetative phase
( B ) rep ductive phase
( C ) senescent phase
( D ) old age
Answer-( B )
5. Which is the correct sequence ?
( A ) Gametogenesis – syngamy embryogenesis – zygote
( B ) Syngamy – gametogenesis zygote – embryogenesis
( C ) Gametogenesis – syngamy zygote – embryogenesis
( D ) zygote – embryogenesis syngamy – gametogenesis
Answer-( C )
6. The term homothallic and monoecious are used to denote
( A ) Bisexual condition
( B ) Unisexual condition
( C ) Staminate flowers
( D ) Pistillate flowers
Answer-( A )
7. Which one of the following is insectivorous plant ?
( A ) Drosera
( B ) Nepenthes
( C ) Both A & B
( D ) Hydrila
Answer-( B )
8. One meiosis produces how many male gametes ?
( A ) 4
( B ) 1
( C ) 2
( D ) 8
Answer-( D )
9. MMC has 24 chromosomes . What will be the number of chromosomes in its endsoperm ?
( A ) 12
( B ) 24
( C ) 36
( D ) 48
Answer-( C )
10. Ephyra larva found in Aurelia is formed by :
( A ) Regeneration
( B ) Segmentation
( C ) Fragmentation
( D ) Strobilation
Answer-( D )
11. What is the maximum age of parrot ?
( A ) 90 years
( B ) 25 years
( C ) 500 years
( D ) 140 years
Answer-( D )
12. No individual is immortal , except :
( A ) single – celled organisms
( B ) green plants
( C ) sponges
( D ) cyanobacteria
Answer-( A )
13. The offspring exactly identical to one another as well as identical to their parents is :
( A ) twins
( B ) replicates
( C ) drones
( D ) clone
Answer-( D )
14. Find the correct combination in the following :
( A ) Zoospore in Sponge
( B ) Gemmules in Pencilium
( C ) Conidia in Algae
( D ) Buds in Hydra
Answer-( D )
15. Grafting in Monocots is rarely successful because :
( A ) Monocots have closed vascular bundles
( B ) Monocots are without cambium
( C ) Monocots are herbaceous
( D ) Monocots have parallel venation
Answer-( B )
16. Grafting in sugarcane can not be performed because :
( A ) Vascular bundles are scattered
( B ) Phloem is internal to xylem
( C ) Sugarcane plant is delicate
( D ) It is unable to bear injury
Answer-( A )
17. Gametes are usually
( A ) Haploid
( B ) Diploid
( C ) Polyploid
( D ) Nulliploid
Answer-( A )
18. Yeast reproduces by means of
( A ) Budding
( B ) Fragmentation
( C ) Pollination
( D ) All of these
Answer-( A )
19. Flowers of Vallisneria spp are
( A ) Anemophilous
( B ) Entomophilous
( C ) Hydrophilous
( D ) Zoophilous
Answer-( C )
20. Reproduction by budding occurs in
( A ) Yeast
( B ) Paramoecium
( C ) Penicillium
( D ) All of these
Answer-( A )
