HSC Science इयत्ता १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Zoology

Modern man belongs to which period?

The most common substrate used in distilleries for the production of ethanol is _______.

Cyclosporin - A is an immunosuppressive drug produced from ____________.

CO₂ is not released during ________.

The gases produced in anaerobic sludge digesters are _______.

Give any two bioactive molecules produced by microbes and state their uses.

Define the following term

Antibiotics

Define the following term

Zymology

Define the following terms

Superbug

When does antibiotic resistance develop?

What is referred to as industrial alcohol? Briefly describe its preparation.

Gene therapy is an attempt to correct a Genetic defect by providing a normal gene into the individual. By this the function can be restored. An alternate method would be to provide gene product known as enzyme replacement therapy, which would also restore the function. Which in your opinion is a better option? Give reasons for your answer.

Differentiate between Somatic cell gene therapy and germline gene therapy.

One of the applications of biotechnology is ‘gene therapy” to treat a person born with a hereditary disease.

i) What does “gene therapy” mean?

ii) Name the hereditary disease for which the first clinical gene therapy was used.

iii) Mention the steps involved in gene therapy to treat this disease.

Write short notes on the following:

Microbial fuel cells

Which of the following is an r-species

What is a Habitat?

Define ecological niche.

Differentiate foeticide and infanticide.

Mangolism is a genetic disorder which is caused by the presence of an extra chromosome number ____________.