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Heterosis is also called
Options
(a) mutation
(b) hybrid vigour
(c) variation
(d) hybrid sterility
Correct Answer:
hybrid vigour
Explanation:
Hybrid vigour or heterosis is defined as the superiority of the hybrid over its parents in which expression of characteristics is greater in the heterozygous offspring than homozygous parents. It is lost on inbreeding. It is lost in the F₂ generation in self pollinated plants and declines slowly in cross pollinated plants. So it is more profitable in vegetatively propagated plants as they do not involve sexual reproduction and so hybrid vigour is not lost in subsequent crops. e.g., sweet potato, sugarcane, strawberry and grapes etc. The term was coined by G.H. Shull
Related Questions: - Pellagra is caused due to the deficiency of which vitamin
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Topics: Enhancement in Food Production
(101)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Pellagra is caused due to the deficiency of which vitamin
- The end of DNA fragments are sticky due to
- Cell elongation is adversely affected by Element required by plant in large
- A person is having problems withy calcium and phosphorus metabolism in his body
- PGA as the first CO₂ fixation product was discovered in photosynthesis of:
Topics: Enhancement in Food Production (101)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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