NEET Biology is the vey important paper in the medical entrance exam. Here, you will discover the NEET Biology MCQs and Answers for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution . NEET Biology Artificial Hybridization Multiple Choice Questions
MCQs on Artificial Hybridization :
1. This is the correct sequence for artificial experiment in bisexual flowers
(a) Self-pollination -> Bagging -> Emasculation -> Rebagging
(b) Cross pollination -> Bagging -> Emasculation -> Rebagging
(c) Emasculation -> Bagging -> Cross pollination -> Rebagging
(d) Bagging -> Emasculation -> Cross pollination -> Rebagging
Answer
Answer: (c)
2. Both geitonogamy and autogamy are prevented in
(a) Cucumber
(b) Papaya
(c) Mazia
(d) Castor
Answer
Answer: (b)
3. The pollen tube releases the two male gametes into the
(a) the cytoplasm of antipodal cells
(b) one male gamete in cytoplasm of synergids and other in cytoplasm of central cell
(c) both in cytoplasm of central cell
(d) both in cytoplasm of synergids
Answer
Answer: (d)
4. Who first used artificial hybridization in fruit crops?
(a) Karpocho
(b) Knight
(c) Jones
(d) Mendel
Answer
Answer: (b)
5. This will lose its economic value if fruits are produced through parthenocarpy
(a) Banana
(b) Citrus
(c) Pomegarante
(d) Grape
Answer
Answer: (c)
6. After reaching the ovary, pollen tube does not display this of the following events
(a) may enter the ovule through chalaza
(b) enters one of the synergids through filiform apparatus
(c) enters the ovule through the micropyle
(d) chemotactic movement of pollen tube towards synergid
Answer
Answer: (d)
7. This statement is incorrect
(a) the seed dormancy is the internal or innate inhibition of generation of normal or viable seeds
(b) embryo in the dormant seeds show higher rate of general metabolic rate
(c) because fo dormancy seeds remain viable for long durations and can be stored
(d) as the seeds mature, its water content is reduced and seeds become relatively dry
Answer
Answer: (b)
8. When dioecious plants are considered for artificial hybridization, this step would not be relevant
(a) collection of pollen
(b) bagging of female flower
(c) dusting of pollen on stigma
(d) emasculation
Answer
Answer: (d)
9. Aleurone layer participates in
(a) enzyme synthesis
(b) transfer of food to cotyledons
(c) is also known as scutellum
(d) protection of delicate embryo
Answer
Answer: (a)
10. The external conditions required for seed germination are
(a) light, moisture and appropriate temperature
(b) oxygen, carbon dioxide and appropriate temperature
(c) oxygen, light and appropriate temperature
(d) oxygen, moisture and suitable temperature
Answer
Answer: (d)