The mature anther wall comprises an epidermis followed by a layer of radially elongated cells with fibrous bands of callose called endothelium whose function is
|
Double fertilization involves |
Answer |
|
Special type of grafting, in which scion unite with the stock while still attached to parent plant |
Answer |
|
In a flowering plant archesporium gives rise to |
Answer |
|
What is the ratio of equational divisions that take place in Cycas and angiosperms respectively leading to the formation of male gametes from pollen grains? |
Answer |
|
Helobial type of endosperm is seen in |
Answer |
|
Asexual reproduction differs from sexual reproduction as |
Answer |
|
Insect pollinated flowers are characterized by |
Answer |
|
8-nucleate embryosacs are |
Answer |
|
A bisexual flower which never opens up in its life span is known as |
Answer |
|
A hyaline, bisexual and self-fertilized flower that does not open at all, is |
Answer |