Question
Which of the following statements best explains the term
“heterosis” in the context of hybrid crop breeding?Solution
Heterosis, or hybrid vigor, refers to the superior performance of F1 hybrids compared to their parents in traits like yield, vigor, and resistance. It results from the masking of deleterious recessive alleles, gene interactions, and increased heterozygosity.
Which is the precursor of ethylene?
Alkaline soils are clay soils with high pH (greater than 8.5) and a poor soil structure. Which soil amendment is most effective in reclaiming alkaline s...
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Pungency and red colour ...
In dryland agriculture, which cropping technique helps in reducing the length of the growing season by overlapping the sowing of a succeeding crop into ...
Which of the following varieties of apple is a pollinizer?
Sponging type of mouth parts are found in which insect?Â
Hemiptera and Hymenoptera exhibit similarity in which of the following aspects of insect classification?
Non-Selective, foliage active contact herbicide is
Match the followingÂ
Tetrazolium (TZ) test is done to check
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