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Mitotis

If antipodal ...

Question

If antipodal cell before the formation of microspore sporogenous tissue undergo cell division

Name the type of cell division

What would be the ploidity of cells of tetrad?

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Solution

(a) Meiosis is the type of cell division that occur in this case.
(b) The cells of the tetrad would be haploid (n).

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Q. Microsporogenesis : As the anther develops, the cells of the sporogenous tissue undengo meiotic division to form microspore tetrade. What would be the ploidy of the cells of the tetrad?

Q. What would be the ploidy of the cells of the microspore tetrad?

Sporogenous tissue → (i) →Microspore mother cells → (ii) → Microspore tetrads
Identify (i) and (ii) in the above sequence.

Q. What is ploidy of microspore tetrad cells?

Q. Based on the given excerpt, answer the given question.

Stamen is regarded as a microsporophyll that possesses microsporangia which have microspore mother cells that give rise to microspores. The cells of sporogenous tissues undergo meiotic division to form microspore tetrad. Microspore is present in the bilobed structure called anther. A male gametophyte is a gamete producing haploid phase in a plant. In angiosperms, it is the pollen grains that are regarded as gametophytes.

From the given options find the odd one out with respect to ploidy.
[1 mark]

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