CBSE Class 12 Strategies for Enhancement in Food Production Multiple Choice Questions with Answers. MCQ Questions Class 12 Strategies for Enhancement in Food Production with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT MCQ questions Class 12 Strategies for Enhancement in Food Production with Answers to know their preparation level.
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MCQ Questions Class 12 Strategies for Enhancement in Food Production with Answers - Set - 4
Question 1:
Essential oils are those which
(a) are essential to the plant itself
(b) are used as lubricants
(c) produce perfumes
(d) are essential for human beings
Correct Answer – (C)
Question 2:
The reason for vegetatively reproducing crop plants to suit for maintaining hybrid vigour is that
(a) they are more resistant to diseases
(b) once a desired hybrid produced, no chances of losing it
(c) they can be easily propagated
(d) they have a longer life span.
Correct Answer – (B)
Question 3:
A collection of plants and seed having diverse alleles of all the genes of a crop is called
(a) herbarium
(b) germplasm
(c) gene library
(d) genome.
Correct Answer – (B)
Question 4:
High milk yielding varieties of cows are obtained by
(a) use of surrogate mothers
(b) superovulation
(c) artificial insemination
(d) all of these.
Correct Answer – (D)
Question 5:
Haploid plants are preferred over diploids for mutation study because in haploids
(a) recessive mutation express immediately
(b) induction of mutations is easier
(c) culturing is easier
(d) dominant mutation express immediately.
Correct Answer – (A)
MCQ Questions Class 12 Strategies for Enhancement in Food Production With Answers
Question 6:
Which one of the following is a viral disease of poultry?
(a) Coryza
(b) New castle disease
(c) Pasteurellosis
(d) Salmonellosis
Correct Answer – (B)
Question 7:
Compared to a bull a bullock is docile because of
(a) higher levels of cortisone
(b) lower levels of blood testosterone
(c) lower levels of adrenaline/noradrenaline in its blood
(d) higher levels of thyroxine.
Correct Answer – (B)
Question 8:
Somaclonal variation appears in
(a) organisms produced through somatic hybridization.
(b) plants growing in highly polluted conditions.
(c) apomictic plants.
(d) tissue culture raised plants.
Correct Answer – (A)
Question 9:
Select the incorrect statement.
(a) Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.
(b) Inbreeding increases homozygosity.
(c) Inbreeding is essential to evolve purelines, in any animal.
(d) Inbreeding selects harmful recessive gene that reduce fertility and productivity.
Correct Answer – (D)
Question 10:
Norman Borlaugh known as “Father of Green Revolution” has developed new cultivating variety of:
(a) Paddy
(b) Rice
(c) Wheat
(d) Sugarcane
Correct Answer – (C)
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