221.

Frederick Sanger is a twice recipient of the Nobel Prize for
A. Chemistry in 1958 and 1980 B. Physics in 1956 and 1972
C. Chemistry in 1954 and Peace in 1962 D. Physics in 1903 and Chemistry in 1911
Answer and Explanation
Answer:A
Explanation: Frederick Sanger Born Aug. 13, 1918, Rendcombe, Gloucestershire, England. English biochemist who was twice the recipient of the Nobel Prize for Chemistry. He was awarded the prize in 1958 for his determination of the structure of the insulin molecule. He shared the prize (with Paul Berg and Walter Gilbert) in 1980 for his determination of base sequences in nucleic acids. Sanger was only the fourth two-time recipient of the Nobel Prize.
222.

The ozone layer restricts
A. Visible light B. Infrared radiation
C. X-rays and gamma rays D. Ultraviolet radiation
Answer and Explanation
Answer:D
Explanation: No answer description available for this question. Let us discuss.
223.

Eugenics is the study of
A. altering human beings by changing their genetic components B. people of European origin
C. different races of mankind D. genetic of plants
Answer and Explanation
Answer:A
Explanation: No answer description available for this question. Let us discuss.
224.

Euclid was
A. Greek mathematician B. Contributor to the use of deductive principles of logic as the basis of geometry
C. Propounded the geometrical theorems D. All of the above
Answer and Explanation
Answer:D
Explanation: No answer description available for this question. Let us discuss.
225.

Ecology deals with
A. Birds B. Cell formation
C. Relation between organisms and their environment D. Tissues
Answer and Explanation
Answer:C
Explanation: No answer description available for this question. Let us discuss.