To be consistent with the semi-conservative model, what woul…
To be consistent with the semi-conservative model, what would be the expected results for the Meselson and Stahl experiment after 4 generations? Note: Generation zero has all heavy DNA, and all subsequent generations use light nitrogen to make new DNA strands.
Read DetailsA gene that codes an enzyme comes with two alleles: a wild-t…
A gene that codes an enzyme comes with two alleles: a wild-type allele and a dominant negative mutant allele. Let’s suppose 1 mg of the wild-type enzyme has 100% enzymatic activity and 1 mg of the mutant enzyme has 0% activity. If you mix together 1 mg of the wild-type enzyme and 1 mg of the mutant enzyme and measured the enzymatic activity, what result would you expect?
Read DetailsAchondroplasia (a form of dwarfism) is caused by a dominant…
Achondroplasia (a form of dwarfism) is caused by a dominant mutant allele that is lethal in the homozygous state. A woman with achondroplasia plans to have children with a man with achondroplasia. What is the expected outcome for her surviving children?
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