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

Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions

(a) Acrosome

(b) Nucleus

(c) Middle piece

Briefly describe the process of spermatogenesis.

Name the functions - Acrosome of sperm.

Describe the process of budding in hydra.

Which endocrine gland plays an important, role in improving immunity?

Multiple choice question.

The given figure shows human sperm. Various parts of it are labelled as A, B, C, and D. Which labelled part represents acrosome?

Explain the structure of secondary oocyte.

Describe the process of oogenesis in human female.

______ has an important role in the development of immune system by maturation of T lymphocytes.

Describe the process of spermatogenesis with the help of diagram.

Select the correct sequence of stages of spermatogenesis in a human male ______.

State the names of hormones and glands secreting them:

Development of immune system and maturation of T-lymphocyte.

In spermatogenesis, at the end of the first meiotic division ______ are formed.

What is spermatogenesis?

Draw a neat and labelled diagram of spermatogenesis.

State the site of production and function of thymosin, testosterone.

Name the germinal layers from which the following organs develop: Tongue, heart, sweat glands, vagina, mammary glands, kidney.

Sketch and label the process of oogenesis.

Which of the following is a mineralocorticoid secreted by the adrenal cortex?

Answer the following:

How many primary spermatocytes and oocytes are required for the formation of 100 spermatozoa and ova?