Heterosis is also called

⇦

⇨

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:

1. Electron microscopic studies of the sarcomeres have revealed that during muscle
2. The first stable product of fixation of atmospheric nitrogen in leguminous plants is:
3. Nucellar polyembryony is reported in species of
4. Difference between prokaryote and eukaryote lies in
5. Escherichia coli with completely radioactive DNA was allowed to replicate in

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