Sexual Reproduction in Flowering Plants Question 44

44. The arrangement of the nuclei in a normal embryo sac in the dicot plants is

(a) $3+2+3$

(b) $2+3+3$

(c) $3+3+2$

(d) $2+4+2$

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Answer : a

Hints & Solutions

(a) In a dicot plant general arrangement of nuclei in the embryosac is that 3 nuclei in 3 cells of egg apparatus (one egg cell & 2 synergids) at micropylar end and 2 polar nuclei in almost middle region and 3 nuclei in the form of antipodals at the distal end from micropyle, towards nucellus. So total nuclei 3 $+2+3$.



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