Biology problems
- 1. Most common disease of poultry in India is
Options- A. fowl pox
- B. tick fever
- C. ranikhet
- D. coryza Discuss
Correct Answer: ranikhet
- 2. Pollen grains in plants are produced in
Options- A. roots
- B. leaves
- C. flower
- D. stem Discuss
Correct Answer: flower
- 3. Plants hormone that induces cell division is
Options- A. auxins
- B. gibberellins
- C. kinins
- D. domins Discuss
Correct Answer: kinins
- 4. One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?
Options- A. Having waited a day, it is too late to take an antibiotic
- B. You need an antiseptic, not an antibiotic
- C. You need to be vaccinated instead of taking an antibiotic
- D. You are infected by a virus Discuss
Correct Answer: You are infected by a virus
- 5. Process of cell division can take place by
Options- A. heterosis
- B. fusion
- C. mitosis
- D. None of these Discuss
Correct Answer: mitosis
- 6. Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of
Options- A. hormones
- B. enzymes
- C. proteins
- D. vitamins Discuss
Correct Answer: enzymes
- 7. Pigmentation of skin is due to
Options- A. lymphocytes
- B. monocytes
- C. leucocytes
- D. melanocytes Discuss
Correct Answer: melanocytes
- 8. Pollination is best defined as
Options- A. transfer of pollen from anther to stigma
- B. germination of pollen grains
- C. growth of pollen tube in ovule
- D. visiting flowers by insects Discuss
Correct Answer: transfer of pollen from anther to stigma
- 9. Ozone hole refers to
Options- A. hole in ozone layer
- B. decrease in the ozone layer in troposphere
- C. decrease in thickness of ozone layer in stratosphere
- D. increase in the thickness of ozone layer in troposphere Discuss
Correct Answer: decrease in thickness of ozone layer in stratosphere
- 10. Who is known as father of Zoology
Options- A. Darwin
- B. Aristotle
- C. Lamark
- D. Theophrastus Discuss
Correct Answer: Aristotle
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