Sunday, March 22, 2020

DNA

1.	DNA structure was discovered by
	A. Karl Land Steiner B. Gregor Mendel C. Watson and Crick D. Hargobind Khorana

2.	Fresh foods and fruits contain more of
	A. fats B. vitamins C. carbohydrates D. proteins

3.	Human heart contains
	A. 2 chambers B. 3 chambers C. 4 chambers D. 6 chambers