Biology, asked by georgettan, 9 months ago

an angiosperm male plant with 20 chromosomein it's pollen mother cells is crossed female plant bearing 20 chromosomes in its stem cell.what is the ploidy of scuttellum and alluerone layer respectively​

Answers

Answered by surbhiandranjan
0

Answer:

30 and 30 should be answer

Answered by fouzilpeer82
0

Answer:

20 and 30

Explanation:

The pollen mother cell is diploid. By meiosis, it produces tetrads of haploid pollens. Each pollen bears 2 haploid male gametes. The ploidy of the male plant is 2n and has 20 chromosomes. The ploidy of the female plant is 2n and has 20. Hence the scutellum will be diploid and its ploidy will be 20. Since the angiospermic Aleurone layer  is triploid, its ploidy will be 3n= 3x10 (n=20/2)= 30. Thus the correct answer is  20 and 30

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