Which of the following is incorrect regarding structure of DNA? (i) Nucleotide is composed of pentose sugar, nitrogenous bases and phosphate group. (ii) Adenine pairs with Thymine and Guanine pairs with Cytosine. (iii) A=T, C=G (iv) DNA strand winds around the nucleosome, which consists of eight pairs of histone proteins. (v) Genes are the fundamental unit of DNA.

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?