Revision: microspore tetrods
1 minute read
Sexual Reproduction in flowering plants revision
-Pollen tetrads in Aristolochia elegans is of five types.
5 types microspore tetrods?
invaginate?
Invagination is the process of a surface folding in on itself to form a
cavity, pouch or tube. In developmental biology, invagination is a mechanism
that takes place during gastrulation. This mechanism or cell movement
happens mostly in the vegetal pole.
Outer surface of pollen grain textures - 3 type of which?
1)deteculate
2)spring
3)porous/pitted
#Pectocellulose - intine
#cryopreservation of pollen grain occurs at -198*C in liq N2.
+megasporogenesis, megasporangium, megasporangia+
-monocarpellary--1)fused-syncarpous..2)free Apocarpous
-ovary
-types of ovule:-
1
2
3
4
5-Amphitropus ----embryo sac--bend horse shoe shape
6
-polar nuclei fuse
-Antipodal cells🤣
2)Find out number of mitosis and meosis required for the formation of embryo
sac in a plant from MMC?
Post a Comment