(a)
Microsporogenesis |
Megasporogenesis |
|
1. |
It is the process of the formation of microspore tetrads from a microspore mother cell through meiosis. |
It is the process of the formation of the four megaspores from a megaspore mother cell in the region of the nucellus through meiosis |
2. |
It occurs inside the pollen sac of the anther. |
It occurs inside the ovule. |
(b) Both events (microsporogenesis and megasporogenesis) involve the process of meiosis or reduction division which results in the formation of haploid gametes from the microspore and megaspore mother cells.
(c) Microsporogenesis results in the formation of haploid microspores from a diploid microspore mother cell. On the other hand, megasporogenesis results in the formation of haploid megaspores from a diploid megaspore mother cell.
Fill in the blanks:
(a) Humans reproduce __________. (asexually/sexually)
(b) Humans are__________. (oviparous/viviparous/ovoviviparous)
(c) Fertilization is __________ in humans. (external/internal)
(d) Male and female gametes are __________. (diploid/haploid)
(e) Zygote is __________. (diploid/haploid)
(f) The process of release of the ovum from a mature follicle is called__________.
(g) Ovulation is induced by a hormone called the __________.
(h) The fusion of male and female gametes is called _____________.
(i) Fertilisation takes place in _____________.
(j) Zygote divides to form _____________which is implanted in uterus.
(k) The structure which provides vascular connection between fetus and uterus is called ____________.
What is menstrual cycle? Which hormones regulate menstrual cycle?
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Too good.
Not good
Improperly differentiated
Better if more answers were given
Not so bad
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thanks sir
I think it should be in more detail