HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Biology

Draw a well labelled diagram of L.S. human testis.

What is the exact action of birth control pills?

Very short answer type question:

Name the part of gynoecium that determines the compatible nature of pollen grain.

Incompatibility is a natural barrier in the fusion of gametes. How will you explain this statement?

Give an account of pollen pistil interaction in detail.

Following are the diagrams of entry of pollen tube into ovule. Identify the type A and B.

Endosperm of angiosperm is __________.

(A) haploid

(B) diploid

(C) triploid

(D) tetraploid

Describe the formation of helobial endosperm

Sketch and Label the 'Structure of HIV'.

‘HAART’ is suggested for the treatment of __________

(A) malaria

(B) cancer

(C) AIDS

(D) high chloesterol level

Write a note on HIV.

Short answer question.

Give the name of causal organism of syphilis and write on its symptoms.

A confirmatory test used for detecting HIV infection is _________.

What does the abbreviation AIDS stand for?

Match the following

Write a short note on AIDS.

The organism which causes Gonorrhoea is ______.

What is glans penis?

Name the hydrolytic enzyme secreted by the acrosome.

AIDS is caused by ______.