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the in-tine of the pollen grain helps in the nuclear division and probably in the formation of male gametes also.
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∙ 12y ago
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What is sporoderm?
Sporoderm is the outermost protective wall around the pollen grain or microspore. It is made up of many layers. The two main layers are Exine and Intine. Exine is outer while Intine is inner layer of sporoderm.
Do Dicot have pollen grain?
yes Dicot have pollen grain and in Dicots pollen grain possess 3 germ pores
In a grain of pollen what is the function of the sperm that doesn't join with the egg cell?
In a grain of pollen,what is the function of the sperm cell that doesn't join with the egg cell?
What is difference between ungerminated pollen grain and germinated pollen grain?
The germinated pollen grain is empty of the male gamete nucleus.
What makes seeds when combined with a flower's eggs?
This tiny grain is called pollen grain.
Can a pollen grain of a flower have one lobe?
No, after a research it is not seen that a pollen grain of a flower have only one lobe. Commonly pollen grain have two or three lobes.
How does pollen grain compare to a microspore?
microspore when develops a exine around it, is called a pollen grain.
Is a pollen grain spore?
Yes of course, it is a microspore which becomes a pollen grain after developing an exine
Why used the mature pollen grain in pollen germination experiment?
this is because premature pollen grain do not contain the sperm cell for fertilization. only the generative nucleus in mature pollen grain will divide mitosisly to form sperm cell for fertilization
How close to the egg can the pollen grain get?
when a pollen grain lands on the stigma it creates a pollen tube that goes down to the egg where sperm fuzes with the egg.
What produces pollen grains?
The anther produces pollen grain.
What structure will pass down the pollen tube?
the pollen grain
