1. Which one is the common start codon?
AUG
UAA
UAG
UGA
2. The two elements would be called isotone if their atoms have-
Same number of protons but different mass
Same number of neutron but different mass
Same number of electron but different mass
Same atomic mass
3. What is the scientific name of the national tree of Bangladesh?
Mangifera indica
Tectona grandis
Dipterocarpus turbinatus
Ficus benghalensis
4. If y=lnx y=\ln x y=lnx then dxdy= \frac{d x}{d y}= dydx= ?
ey e^{y} ey
ex e^{x} ex
x x x
1y \frac{1}{y} y1
5. In the presence of which light is photosynthesis the highest?
Red
Blue
Violet
Orange