A person has been diagnosed to be HIV positive.
Write the full name of the pathogen involved and describe its structure.

A person has been diagnosed to be HIV positive. Which particular cells of this person are likely to get destroyed?

In a musical chairs game, a person has been advised to stop playing the music at any time within 40 seconds after its start. What is the probability that the music will stop within the first 15 seconds ?

In a musical chairs game, a person has been advised to stop playing the music at any time within 40 seconds after its start. What is the probability that the music will stop within the first 15 seconds?

Explain the mechanism of DNA repication with the help of a replication fork. What role does the enzyme DNA-ligase play in a DNA replication fork ? OR Construct and label a transcription unit from which the RNA segment given below has been transcribed. Write the complete name of the enzyme that transcribed this RNA.

Write structure of phenyl isopentyl ether. Give its IUPAC name.

Ethene forms an addition product with chlorine. Name this addition product and write its structural formula.

Due to gradual weakening of ciliary muscles and diminishing flexibility of the eye lens, a certain defect of vision arises. Write the name of this defect. Name the type of lens required by such persons to improve the vision. Explain the structure and function of such a lens.

Phenol and fomaldehyde undergo condensation to give a polymar (A) which on heating with formaldehyde gives a thermosetting polymer (B) Name the polymers. Write the reaction involved in the formation of (A) what is the structural difference between two polymers?

A green complex, K_(2)[Cr(NO)(NH_(3))(CN)_(4)] is paramagnetic and has mu_(eff)=1.73 BM . Write the IUPAC name of the complex and draw the structure of anion and find out the the hybridisation of metal ion.

Name the important ore of silver. Write all the steps and reactions involved in the cyanide process for the extraction of silver from its ore.