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Hybrid vigour is referred to __________

Hybrid vigour is referred to __________ Correct Answer superior phenotype of a hybrid

Hybrid vigour is the phenomenon of increased vigour in the hybrids as compared to both of its parents. This phenomenon came to light in the 20th century in corn F1 hybrids. The resulting hybrid plant had a higher growth rate, was phenotypically superior and had increased yield as compared to both the parents.

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Study the following information carefully to answer the question given below. Following are the qualifications and conditions for certain posts in a "XYZ" company. The candidate must: a) be an engineering graduate with at least 70% marks. b) be not less than 21 years and not more than 26 years of age as of 01/04/2018. c) have passed the written test with at least 60% of marks. d) be willing to pay a deposit of Rs. 2.5 lakh, to be refunded on completion of probation & training. If the candidate satisfies (a)-(d) he/she would be referred to as Engineer. However, if the candidate satisfies all the above, except: (i) at (a), has appeared for final semester exam; result yet to be declared; has 75% average marks up to the seventh semester; would be referred as Project-Engineer. (ii) at (a), has done diploma in engineering with 75% of marks, would be referred as Asst. Engineer. (iii) at (d), is willing to pay Rs. 1.5 lakh as a security deposit, would be referred to as Engineer-Trainee. (iv) at (b), even if age is above 26 years as of 1/4/18, but with 3 years of experience, would be referred as a Senior-Engineer. Pranita has completed her B. E. in electronics with 71% of the marks. She also has cleared the written tests with 75% of the marks. She is 22 years old as of May 2018. She is willing to pay a security deposit of Rs. 1.5 lakh. For which position will she be referred?
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Hybrid vigour results from ____________
Plant breeds manipulate sterility and floral morphology to take advantage of hybrid vigour.
Which of the basic methods listed below are utilised for this purpose?
1. Genetic male sterility
2. Self-incompatibility
3. Hybridization
4. Induced mutation
5. Cytoplasmic male sterility
Select the correct answer:
Hybrid vigour is exploited maximum in
Consider the following statements and choose the correct answer:
1. For the development of viable seeds the double fertilization is very necessary
2. The net result of double fertilization is the formation of endosperm from the triploid nucleus
3. In Angiosperms very free nuclear divisions take place as in Gymnosperms
4. The endosperm nucleus has both maternal and paternal characters showing physiological importance like hybrid vigour