If bile pigments are prevented from leaving digestive tract, then they cause
A. Hepatitis
B. Jaundice
C. Gall stones
D. Blockage
If bile pigments are prevented from leaving digestive tract, then they cause Read More »
Biology
Double fertilization is feature of
A. Ferns
B. Whisk ferns
C. Gymnosperms
D. Angiosperms
Double fertilization is feature of Read More »
Alternation of generations is absent in
A. Hydration
B. Obelia
C. Jelly fish
D. Physalia
Alternation of generations is absent in Read More »
The single healthy megaspore retained within the megasporangium germinates to form an egg containing female gaemtophyte called
A. Ovule
B. Seed
C. Fruit
D. Embroyo sac
Pollen grains in pinus have __________ for dispersal through wind?
A. Flagella
B. Cilia
C. Wings
D. Feathers
Pollen grains in pinus have __________ for dispersal through wind? Read More »
Pox viruses are_________?
A. RNA non-enveloped
B. RNA enveloped
C. DNA non-enveloped
D. DNA enveloped
Pox viruses are_________? Read More »
Destruction of all life forms is called
A. Sterilization
B. Disinfection
C. Antisepsis
D. Preservation
Destruction of all life forms is called Read More »
Reverse transcriptase is present in
A. All RNA viruses
B. All DNA viruses
C. All retroviruses
D. All viruses
Reverse transcriptase is present in Read More »
It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect:
A. Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones
B. Older sediment layers have less amount of these reaioactive isotopes as that of the young ones.
C. Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.
D. Older sediment layers did not have these radioactive isotopes
Bacteria which grow either in the presence or absence of oxygen
A. Aerobic bacteria
B. Anaerobic bacteria
C. Facultative bacteria
D. Microaerophilic
Bacteria which grow either in the presence or absence of oxygen Read More »