i. The power generation by the above two methods is non-polluting True/False.
ii. List any two applications of solar energy
iii. What is a photovoltaic cell?

Q: Using various resources such as your school library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal say horse.

We are told that evolution is a continuing phenomenon for all living things. Are humans also evolving? Justify your answer.

Q: Discuss with your teacher what does a suitable gene means, in the context of DNA vaccines.

‘Modern methods of breeding animals and plants can alleviate the global food shortage’. Comment on the statement and give suitable examples.

In an experiment, DNA is treated with a compound which tends to place itself amongst the stacks of nitrogenous base pairs. As a result of this, the distance between two consecutive base increases. from 0.34nm to 0.44 nm calculate the length of DNA double helix (which has 2×109 bp) in the presence of saturating amount of this compound.

A low level of expression of lac operon occurs at all the time. Can you explain the logic behind this phenomena.

Gene flow occurs through generations. Gene flow can occur across language barriers in humans. If we have a technique of measuring specific allele frequencies in different population of the world, can we not predict human migratory patterns in pre-history and history? Do you agree or disagree? Provide explanation to your answer.

A patient is suffering from ADA deficiency. Can he be cured? How?

How can we improve the success rate of fertilisation during artificial insemination in animal husbandry programmes?

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

Read the question carefully and focus on the core concept being asked.
Reference examples and data from the chapter when answering questions about Human Health and Disease.
Review previous year question papers to get an idea of how such questions may be framed in exams.
Practice answering questions within the time limit to improve your speed and accuracy.
Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 9: In the figure, structure of an antibody molecule is shown. Name the parts A, B and C. Show A, B and....

In the figure, structure of an antibody | Class 12 Biology Chapter Human Health and Disease, Human Health and Disease NCERT Solutions

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