Biology 1st Paper CQ-Rajshahi Board-2021

What is synapsis?

Explain crossing-over.

Explain the stage with labelled diagram of ' $F$ ' division in which chromosomes move towards the pole.

Which division is important in creating diversity and maintaing species individuality? Analyze.

What is Parthenogenesis?

What is meant by double fertilization?

Explain the process ' $A$ ' of the stem.

Analyze the importance of the plant creation in the process 'B' of the stem in the context of Bangladesh.

What is Osmosis?

What is meant by TCA cycle?

Explain the process which contributes to the industry of the above-mentioned two processes.

Both similarities and dissimilarities are found between the mentioned two process - Analyze.

What is transpiration?

What is meant by photophosphorilation?

Show the $\mathrm{CO}_{2}$ reduction pathway of the first two plants of the stem with flowchart?

The carbohydrate production capacity of the last two plants of the stem is higher than first two - Analyze.

What is Macroelements?

What is meant by 'Donnan equilibrium'?

Explain the process 'P' of the stem with the help of modern theory.

The processes 'P' and 'Q' of the stem are different Analyze.