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  • If the meiocyte of a maize plant contains 20 chromosomes. Write the number of chromosomes in the endosperm and embryo of the maize grain and give reasons in support of your answer.     

If the meiocyte of a maize plant contains 20 chromosomes. Write the number of chromosomes in the endosperm and embryo of the maize grain and give reasons in support of your answer. 

 

 

 

 
 
 
 
 

Answers (1)

Endosperm = 20

Embryo = 20

Diploid meiocyte (20 chromosomes) form haploid gametes fuse to form diploid (20) zygote which develops into an embryo / syngamy of two haploid gametes to form a diploid zygote.

One haploid gamete fuses with two polar nuclei (chromosome 10+10) to form (triploid - 30) endosperm nuclei (which divides to from endosperm), triple fusion of three halpoid nuclei (1 gamete + 2 polar nuclei) to form a triploid endosperm.

Posted by

Priyanka Kumari

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