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1) Tay-Sachs is a recessive genetic disease in humans. If one parent is homozygous normal and the other is a carrier (heterozygous), what are the chances that their child will have this disease? a) 0% b) 25% c) 50% d) 75% e) 100% 2) If an organism shows a recessive […]

Consider the role of the coenzyme NAD in glucose oxidation. In the process of glycolysis the formation of pyruvate involves the reduction of the coenzyme NAD to NAD.2H. (a) Which other stages of glucose oxidation produce molecules of the reduced coenzyme, NAD.2H? (b) Explain what happens to NAD.2H produced during […]

LMS is very rare human hereditary disorder resulting in spastic para paraplegia and mental retardation. LMS is caused by a recessive allele with Mendelian inheritance. A couple, Ross and Rachel would like to have children. However, Ross’s great-great grandfather was known to have had a daughter(from a previous marriage, not […]

Q1. If a single heterozygous plant is selfed, and its descendants are selfed continuously thereafter, how many generations would it take to achieve approximately 98.4 percent homozygotes? Q2. Two organisms, each with the genotypes TtGg, mate. The chance of producing as offspring that has the dominant phenotype for height (T) […]