The MN blood group in humans is under the control of a pair of codominant alleles, LM and LN. In a group of 556 individuals, the following genotypic frequencies are found: 167 MM280 MN109 NN (a) Calculate the frequency of the LM and LN alleles. (b) Test (using the Chi-squared […]

Q. Is evolution random? If evolution is random, then how does one explain the evidence of “convergent evolution” very different organisms such as fish and ichthyosaurs and dolphins arriving at the same solution to swimming fast in water? If evolution is directed, then if you might rewind the movie of […]

Q. A man’s grandfather has galactosemia, a rare autosomal recessive disease. The man married with a woman whose sister had galactosemia. The woman is now pregnant with their first child. a. Sketch the pedigree as described. b. What is the possibility that this child will have galactosemia? c. If the […]

Suppose that two mosquito populations are being studied. The populations differ in their choice of the water in which they choose to lay their eggs. One population is urban, and avoids laying eggs in water treated with insecticides which are heavily used in urban areas. What difference between populations would […]