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Choose one of the positions below and defend it. Explain the conflict between the use of nuclear technology to make the atomic bomb, and the benefit of nuclear physics to cancer therapy? (use as much space as you need) i. Science and technology are not risk free. ii. Science and […]

Q1. In cats short hair is dominant over long hair and the gene involved is autosomal. Another gene, B1 is sex-linked and produces yellow coat colour; its allele, B2 produces black coat colour, and combination B1, B2 produces a tortise-shell coat colour. If a long-haired black male is crossed with […]

The gene that encodes the enzyme called tyrosine hydroxylase is known to be up regulated by the CREB protein.  Tyrosine hydroxylase is expressed in nerve cells and is involved in the synthesis of catecholamine, a neurotransmitter.  The expose of cells to adrenaline normally up regulates the transcription of the tyrosine […]

1) After having a severe cold accompanied by nasal congestion, one complained of a frontal headache and the right side of his face ached. What bony structures probably became infected by the bacteria or viruses causing the cold? 2) An elderly woman, stumbled while walking, she then felt a terrible […]