HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Biology

What are 'biofertilizers'? Explain them with suitable examples.

What is a heterocyst?

Give the meaning of the Nif gene.

Name the aquatic fern commonly used in paddy fields as a biofertilizer.

Define chemoautotrophs.

Identify free-living bacterial bio-fertilizer.

Give one example of the autosomal recessive disorder.

Short Answer Question.

Write note on –PKU.

Which one of the following is a free-living bacterial biofertilizer?

Name any two bacterial biofertilizers.

Define estuary.

Very Short Answer Question:

What is denitrification?

Very Short Answer Question:

Name the bacteria responsible for conversion of nitrite to nitrate.

Long Answer Question:

Explain biological nitrogen fixation with example.

______ associated with plants like Azolla and Cycas can be used as a biofertilizers.

State any three benefits of mycorrhiza.

State any three benefits of Biofertilizers.

Match the column A with B and rewrite correct pairs.

What is autosomal inheritance? Explain different disorders due to autosomal inheritance.

Ventricular depolarization is represented by ______.