BIOL201 Lecture Notes - Punnett Square, Cinnabar, Wild Type
11 Apr 2014
School
Department
Course
Professor
Document Summary
Biology 207 a1 - fall 2011 - midterm two. Question 1 what is a gene? (1 mark) Question 2 in drosophila the black (b) and cinnabar (cn) genes are 9. 0 mu apart on chromosome 2. Flies homozygous for the b- allele have black instead of tan bodies. Flies homozygous for the cn- allele have orange instead of red eyes. Include a punnett square in your answer. (3 marks) Question 3 you decide to make some money from your newfound genetics knowledge and go into the cat breeding business. To start you get a male cat with black stripes and a grey female cat (both from pure-breeding lines) and mate them. Each of the offspring are black with stripes. You intercross the f1 and get: twelve kittens with black stripes five black kittens four kittens with grey stripes one grey kitten. Propose a complete genetic explanation for these results. Biology 207 a1 - fall 2011 - midterm two - id _________________
