Taq polymerase is obtained from the bacterium Thermus aquaticus. It is a thermostable DNA polymerase enzyme and remains active even remain active during the high temperature induced denaturation of double stranded DNA in a PCR reaction.
(a) Mention the cause and the body system affected by ADA deficiency in humans.
(b) Name the vector used for transferring ADA-DNA into the recipient cells in humans. Name the recipient cells.(a) Name the group of viruses responsible for causing AIDS in humans. Why are these viruses so named?
(b) List any two ways of transmission of HIV infection in humans, other than sexual contact.
(a) Draw a neat labelled diagram of a nucleosome.
(b) Mention what enables histones to acquire a positive charge.
