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

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

Match the columns :

Name any two birth control measures which have high chances of failure.

The diagram represents a surgical sterilization method in males. Study the same and answer the questions that follow :

1. Give the name of the surgical method represented in the diagram.
2. Which part is ligated or cut?
3. Name the corresponding surgical method conducted in females.

The technique used to block the passage of sperm in male is______.

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 ______.

When the ELISA test was conducted on an immune-suppressed person, he tested positive for a pathogen.

1. Identify the disease the patient is suffering from.
2. Name the causative entity. 
3. Mention the cells of the body that are attacked by the pathogen.