Reproductive Health — BIOLOGY STD 12 Science — Question

A new type of drug, PTC 124, enables translation to continue through the nonsense codon. Trials in mice homozygous for a CFTR allele containing the nonsense codon have found that animals treated with PTC 124 produce normal CFTR protein in their cells. The drug is taken orally and is readily taken up into cells all over the body.
Using your knowledge of the progress towards successful gene therapy for cystic fibrosis, suggest why PTC 124 could be simpler and more reliable treatment for this disease.

Explain giving three reasons why tropics show, greatest level of species diversity.

Why is CuT considered a good contraceptive device to space children?

Distinguish between
Upright and inverted pyramid.

What are the suggested reasons for population explosion ?

Explain the permanent methods of birth control.

Arrange the following terms in the correct developmental sequence :
Pollen grain, Sporogenous tissue, small pores quaternary, small pores, mother cell.

If your family owned a dairy farm, what measures would you undertake to improve the quality and quantity of mild production?###Enumurate any six essentials of good effective dary farm management practices.

Name a naturally occurring source which can transfer useful pathogen genes into plant cells. Similarly, name another source which is used for transfer of disease causing genes into animal cells for the benefit of humans. How are biologists using these natural resources for the benefit of mankind?

What are linked genes? How can a pair of linked genes be identified?