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प्रश्न
A male plant bearing red flowers was crossed with a female plant bearing yellow flowers. In the F1 generation, all the flowers were orange in colour.
Give a reason to explain the change of colours in F1 generation.
उत्तर
Incomplete dominance explains the colour variation in F1 generation. In incomplete dominance, a type of gene interaction, both alleles of a gene at a locus are only partially expressed. Here in F1 all the progeny obtained heterozygous Ry when pure red flower RR was crossed with yellow blossom yy. They start to turn orange.
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संबंधित प्रश्न
Arrange the following terms in the correct developmental sequence:
Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes.
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Still it is observed that it does not form a continuous layer around the pollen grain. Give reason.
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In an angiosperm, how many microspore mother cells are required to produce 100 pollen grains?
In angiosperms, pollen tubes liberate their male gametes into the ______.
The innermost layer of anther is tapetum whose function is ______.
Sepals and petals or perianth are inconspicuous in entomophilous flowers.
In Zostera, the pollen grains are long and ribbon-like and released inside the water.
