1
Question
Which one of the following shows the last diploid stage in the life cycle of angiosperms?
Which one of the following shows the last diploid stage in the life cycle of angiosperms?
Open in App
Solution
The correct option is B Microspore mother cell
A. Microspore mother cell or MMC is the diploid germ cell which forms microspores (pollen) by the process of microsporogenesis.B. Zygote is the diploid structure formed by the fusion of male and female gametes.C. Nucellus is the central part of ovule in which embryo is present. It is triploid.D. Pollen grain or microspore is the haploid male gamete.In the life cycle of angiosperms, zygote gives rise to a complete plant. The plant has germ cells which are diploid and produce gametes. The gametes then fuse to form a zygote. Hence, microspore mother cell is the last diploid stage because after that, haploid gametes are formed.So, the correct answer is 'Microspore mother cell'.
A. Microspore mother cell or MMC is the diploid germ cell which forms microspores (pollen) by the process of microsporogenesis.
B. Zygote is the diploid structure formed by the fusion of male and female gametes.
C. Nucellus is the central part of ovule in which embryo is present. It is triploid.
D. Pollen grain or microspore is the haploid male gamete.
In the life cycle of angiosperms, zygote gives rise to a complete plant. The plant has germ cells which are diploid and produce gametes. The gametes then fuse to form a zygote. Hence, microspore mother cell is the last diploid stage because after that, haploid gametes are formed.
So, the correct answer is 'Microspore mother cell'.
Suggest Corrections
0
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
