Question
Consider the statements A-D
A. Secondary nucleus of embryo sac fuses with a male gametic nucleus and results triple fusion.
B. Synergid directs the pollen tube growth and receive male gametes during fertilization.
C. Diploid zygote and triploid PEN are the products of triple fusion.
D. Microsporogenesis result two male gametic nuclei in the pollen grains.
Consider the statements A-D
A. Secondary nucleus of embryo sac fuses with a male gametic nucleus and results triple fusion.
B. Synergid directs the pollen tube growth and receive male gametes during fertilization.
C. Diploid zygote and triploid PEN are the products of triple fusion.
D. Microsporogenesis result two male gametic nuclei in the pollen grains.
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Solution
The correct option is C A and B are correct; C and D are wrong
Diploid zygote and triploid PEN are the products of double fertilization Since endosperm is a product of the fusion of three haploid nuclei, it is called a triple fusion. After the meiotic division, four haploid microspores are produced from each diploid sporogenous cell in a process called Microsporogenesis.So the correct option is 'A and B are correct; C and D are wrong.'
Diploid zygote and triploid PEN are the products of double fertilization Since endosperm is a product of the fusion of three haploid nuclei, it is called a triple fusion. After the meiotic division, four haploid microspores are produced from each diploid sporogenous cell in a process called Microsporogenesis.
So the correct option is 'A and B are correct; C and D are wrong.'
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