Question

The ploidy level is NOT the same in ......

a. Integuments and nucellus

b. Root tip and shoot tip

c. Secondary nucleus and endosperm

d. Antipodals and synergids​

Answer 1

Answer:

option C

secondary nucleus is formed by fusion of two primary nucleus so it is diploid where endosperm is formed by fusion of secondary nucleus with male gamete so it is triploid

Answer 2

The ploidy level is not the same in Secondary Nucleus and Endosperm

Explanation:

• The embryo sac comprises seven cells but eight nuclei in its composition.  One nucleus from the chalazal pole and one nucleus from antipodal point come in the great primary cell and thus large cell includes two nuclei.
• These two polar nuclei existing in the central cell combine with each other before the means of fertilisation and a nucleus is created known as secondary cells.
• The secondary nucleus since includes the two nuclei, consequently, is estimated 2n or diploid structure. This diploid composition can combine with the male nuclei and produce a triploid formation called endosperm.

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