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Strategies for Enhancement in Food Production

AIPMT 2002MCQEasy📈 Topic in 25% papers+4−1
Ques. 1AIPMT 2002

What is the reason of formation of embryoid from pollen grain in tissue culture medium ?

  1. Double fertilization
  2. Test tube culture
  3. Cellular totipotency
  4. Organogenesis

Answer

(3) Cellular totipotency

Solution

A pollen grain is a single (haploid) cell; on a suitable culture medium it divides and forms an embryo-like structure (embryoid), which grows into a haploid plantlet (anther / pollen culture).

As per NCERT, the capacity to generate a whole plant from any cell / explant is called totipotency.

∴ Embryoid formation from a pollen grain is due to cellular totipotency.

Answer: (3)

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Ques. 2AIPMT 2002

Which of the following crops have been brought to India from New world ?

  1. Mango, tea
  2. Coffee
  3. Tea, rubber, mango
  4. Cashewnut, potato, rubber
Ques. 3AIPMT 2001

Which statement is correct about centre of origin of plant ?

  1. Climatic condition more favourable
  2. More diversity in improved variety
  3. None
  4. Frequency of dominant gene is more
Ques. 4AIPMT 2001

Before the European invasion, which vegetables were absent in India?

  1. Simla mirch and Brinjal
  2. Bitter gourd
  3. Maize and chichinda
  4. Potato and Tomato
Out of syllabus
Ques. 5AIPMT 2001

Triticale is obtained by crossing wheat with

  1. Barley
  2. Rye
  3. Oat
  4. Maize
Out of syllabus
Ques. 6AIPMT 2000

Which statement is correct?

  1. Workers are the smallest of the three castes
  2. Wax is waste material of honey bee
  3. Drone of honey bee is diploid
  4. A. indica is largest wild honey bee
Out of syllabus

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All NEET Botany chapters
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