Bob and Sally recently married. Upon deciding to plan a family,both Sally and Bob find out that they are both heterozygous for cystic fibrosis,but neither of them has symptoms of the disorder. Set up and complete a Punnett Square for cysticfibrosis for this couple; turn in the Punnettsquare. When doing […]

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 […]