Answer in a word or sentence: 1. Who gave the theory of natural selection and the concept of ‘organic evolution’? 2. What idea is proposed by J.B.S Haldane about the origin of life on earth? 3. Give an example where environmental factors play a major role in sex determination. 4. […]

Certain restriction enzymes produce cohesive (sticky) ends. this means that they a) make a staggered double-strand cut, leaving the ends with a few nucleotides of single-strand DNA protruding. b)cut in regions of high GC content, leaving ends that can form more hydrogen bonds than ends of high at content.c)cut both […]

Complete the Cell Cycle charts below. Describe the events in each phase for Cell Cycle A. Compare the steps in mitosis and meiosis for Cell Cycle B. Cell Cycle A Phase Describe the events in each phase G1   (1st growth stage)   S (Synthesis)   G2  (2nd growth stage)   Prophase of […]

Q. You are working in a human genetics laboratory that studies causes and treatments for eye cataracts in newborns. This disease is thought to be caused by a deficiency in an enzyme called galactokinase, but the human gene that encodes this enzyme has not yet been identified. At a talk […]