Question

9.
Octaploid male plant is crossed with
hexaploid female plant, what will be
ploidy of antipodal cells of mother plant.
1) 3
2) 4
3) 7
4) Can't say​

Answer 1

Explanation:

Cant say because the answer is 6 .

Explanation

When we cross octoploid(8n) male with diploid female(2n), the gamete formed is 4n and n, therefore zygote will be 5n.

Endosperm is formed by the process of triploid fusion, wherein one male gamete fuses with two polar nuclei. In this case, two polar nuclei are haploid but male gamete is tetraploid(4n). Hence the endosperm would be hexaploid (n+n+4n).

So the correct answer is '6'.

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Answer 2

The answer is can't say