Biology 2nd Paper MCQ-Dinajpur Board-2017

1. Sohel is a normal man. Recently be married a woman named Sumi who is also normal but carries the gene of colour blindnexs

What will be the fate of the male children in the first generation?

i. all will be colortyind

ii. $50 \%$ colortlind

iii. $50 \%$ ncrmal

Which one is correct?

2. Which one is the exoskeleton of the head of the Grasshopper?

3. How many lobules are there in the right lung?

4. Which of the following organ is supplied by the Coronary arteries?

5. The characteristics of the figure -

i. presence of burbeul

ii. secretes hypnotoxin

iii. butt is wide

Which one is correct?