Question

Answer the following in short:- A) Genes are a part of which substance? B) Which type of plant cells show a lot of cell division? C)You pick a leaf and collect the spongy cells present in the middle and observe under microscope. They appear to have a lot of spaces in between and the cell walls also appear thin. They are most likely which type of plant tissue? D) The onion peel you observed under microscope was which type of plant tissue? E) Which structure is responsible for gas exchange and respiration in plants?

Answer 1

A-DNA
b-meristematic cells
e-pneumatophore

Answer 2

Explanation:

1. Genes are made of a chemical called DNA, which is short for 'deoxyribonucleic acid'. The DNA molecule is a double helix: that is, two long, thin strands twisted around each other like a spiral staircase. The sides are sugar and phosphate molecules.
2. meristematic cells