oo Simple Mobile 4G 9:36 PM roosevelt.blackboard.com 3. You have been given a la
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oo Simple Mobile 4G 9:36 PM roosevelt.blackboard.com 3. You have been given a large sum of funds from the city of Chicago to come up with a way to rid Lake Michigan of Zebra mussels. Through your studies, you have discovered a new biochemical pathway! The pathway is depicted below (3.0 pts). Waterase shorase Sandase WATER..SHORESAND BEACH In this pathway, the precursor WATER is taken up by Zebra mussels and is converted to the final product BEACH. WATER is converted to SHORE by the enzyme, waterase. The enzyme, shorase, then converts SHORE to SAND and the final enzyme in the pathway, sandase, converts SAND to BEACH. Zebra mussels that have a loss-of-function mutation' (If) for the genes that encode either waterase, shorase or sandase cannot convert WATER to BEACH and cannot survive on WATER alone, whereas normal Zebra mussels can survive with only WATER. Decide if the following statements are true or false and explain your decision (1.0 pts). A. Zebra mussels mutant (If) for waterase can survive if given the intermediate SHORE. B. Zebra mussels mutant (If) for shorase can survive if given the intermediate SHORE C. C. Zebra mussels that are mutant (If) for both waterase and sandase can survive if given the intermediate SAND 4. Two organisms AABBCCDDEE and aabbccddee are mated to produce F1 that is self-fertilized. If the capital letter represents dominant, independently assorting alleles: (2.Opts.) a) How many different genotypes will occur in the b) What proportion of the F2 genotypes will be recessive for all five loci? c)Would you change your answers (a and/or b) if the initial cross occurred between AABBccDDEE X aabbccddEE parents? d)Would you change your answers (a and/or b) if the initial cross occurred between AABBccDDee X aabbCCddEE parents?Explanation / Answer
3. The statement "a" is true
Zebra muscles mutant for waterase can survive if given the intermediate shore. Because zebra muscles cannot survive only in water.
4. a. 11 genotypes result in F2.
b. proportion of recessive homozygous 1/64
c. no
d. no
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