| ⇦ | 
| ⇨ |
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: - The most active phagocytic white blood cells are:
- Photosynthesis occurs with mimimum loss of water is
- Ribosomes are involved in protein synthesis in
- A plant cell becomes turgid due to
- Excessive elongation of plant stem is due to
Topics: Enhancement in Food Production
(101)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The most active phagocytic white blood cells are:
- Photosynthesis occurs with mimimum loss of water is
- Ribosomes are involved in protein synthesis in
- A plant cell becomes turgid due to
- Excessive elongation of plant stem is due to
Topics: Enhancement in Food Production (101)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply