HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Important Questions for Biology

From which microbial sources can pectinase be obtained?

Describe any ‘two’ applications of tissue culture technique.

Name the type of animal breeding carried out to produce amule.

Give the economic importance of fisheries. 

Wheat variety 'Atlas 66' is improved for ______.

Erythromycin is obtained from ______.

Answer in ‘one’ sentence : 

From which microorganism is vinegar obtained?

Answer in ‘one’ sentence :

What is fermentation? 

Answer in ‘one’ sentence : 

What is bioaccumulation? 

Give the names and functions of enzymes involved in lactose metabolism in E. Coli. 

Explain selective breeding. Give any 'two' examples and their nutrients obtained by selective breeding. 

Answer in only one sentence of the following question: 

Name the gas which caused the Bhopal gas tragedy in 1984. 

Give the economic importance of fishery.

Wheat -Atlas 66 has high contents of ______.

Saccharomyces cerevisiae is used to produce enzyme ______.

What are flocs with respect to sewage treatment?

Give names of two organisations which provide most commonly used models of biogas plants.

A young girl is health conscious. Her dietician advised her to include mushrooms in her diet. What must be the reason?

Match the column A with B and rewrite correct pairs.

Name two bacteria which are responsible for fermenting dough of idli, dosa.