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

Short answer question.

Enlist the different factors that are responsible for changing gene frequency.

Match the following:

Long answer question.

By taking industrial melanism as one example. Explain the concept of natural selection.

Long answer question.

Describe the different types of reproductive isolations.

Long answer question.

Explain the different factors responsible for genetic variations.

Give the full form of IAA.

Choose the correct alternative.

What is the minimum number of the plasma membrane that oxygen has to diffuse across to pass from air in the alveolus to haemoglobin inside a RBC?

Short answer question.

Write a note on blood plasma.

Distinguish between Intrinsic and extrinsic process of clotting

Long answer question:

Describe human blood and give its functions.

What is Isolation?

What is Genetic variations?

The proportion of an allele in the gene pool to the total number of alleles at a given locus is called _______.

Any random fluctuation in allele frequency, occurring in the natural population by pure chance is called __________.

Define the term ‘Mendelian population’.

What is hybrid sterility?

Explain Geographical Isolation

Write down the three main concepts of the modern synthetic theory.

Industrial melanism is one of the best example for ______.

Which event is represented by the above diagram, related to chromosomal aberrations?