1000+ GK Questions and Answers 2021 - 1

Question: 1

What is callus?

When a plant tissue grown in a appropriate medium, it grows into a group of cells called callus.

Question: 2

What are primary egg membranes?

Primary egg membrane is developed by the oocyte itself.

It lies between the oocytes and follicle cells (eg) vitelline membrane.

Question: 3

What is Gynoecium?

Gynoecium is the female reproductive part of a flower. It is made up of carpels.

Question: 4

What are adult stem cells?

Adult stem cells are undifferentiated cells that occur in a differentiated tissue in the body.

It can be differentiated to become any of the specific cell types of the tissue in which it originated.

Question: 5

What is protogyny?

Protogyny is one of the contrivances for cross pollination. In this condition, the stigma matures earlier than the anthers of the same flower. Thus self pollination is prevented (eg). Sorghum.