Which one of the following diseases can be treated by human protein (a -1- antitrypsin) produced by transgenic animals?

Identify the set of cells which have haploid number of chromosomes ?

Pollen grains are protected from high temperature and strong acids due to the presence of :

A nucleoside comprises:

Which of the following is a hormone releasing IUD?

The decomposition rate is slower if detritus is rich in-

Read the given passage carefully and answer the questions
Antibiotics have greatly improved our capacity to treat deadly diseases such as plague, whooping cough (kali khansi), diphtheria (gal ghotu) and leprosy (kusht rog), which used to kill millions all over the globe.
Streptokinase produced by the bacterium Streptococcus and modified by genetic engineering is used as a 'clot buster' for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack. Microbes are diverse-protozoa, bacteria, fungi and microscopic animal and plant viruses, viroids and also prions that are proteinacious infectious agents. The puffed-up appearance of dough is due to the production of CO₂ gas. Similarly the dough, which is used for making bread, is fermented using baker's yeast (Saccharomyces cerevisiae). Primary sewage treatment basically involve physical removal of particles - large and small from the sewage through filtration and sedimentation. These are removed in stages; initially, floating debris is removed by sequential filtration. Then the grit (soil and small pebbles) are removed by sedimentation. All solids that settle form the primary sludge, and the supernatant forms the effluent. The effluent from the primary settling tank is taken for secondary treatment. The primary effluent is passed into large aeration tanks, where it is constantly agitated mechanically and air is pumped into it. This allows vigorous growth of useful aerobic microbes into flocs. While growing, these microbes consume the major part of the organic matter in the effluent.
Primary sludge treatment involves -

We should not allow mosquitoes to breed in our surroundings because
they

If v is the frequency of ac mains, then the frequency of sonometer wire at resonance is :

The order of a null matrix is:

Which one of the following diseases is not the sexually transmitted infections?

Antibody molecule is made up of four peptide chain called as light and heavy chain are joined together by :

The interaction between two species where one species is benefitted and the other is neither benefitted nor harmed is known as: