Cells often need to turn on a set of genes together to activ…
Cells often need to turn on a set of genes together to activate a metabolic pathway that is needed – for example, to be able to break down lactose when glucose isn’t available, or synthesize a needed amino acid. How do prokaryotes (such as bacteria) typically express a set of genes together? [a] How do eukaryotes (such as humans) typically express a set of genes together? [b]
Read DetailsExtra credit (2 pts if answered correctly – I will add the p…
Extra credit (2 pts if answered correctly – I will add the points to your score) In eukaryotes (such as humans), two individuals can be born that are genetically identical, but they can end up with slightly different phenotypes from each other. How does epigenetics explain this?
Read DetailsIn Muppet Monsters, a gene controls whether an individual ha…
In Muppet Monsters, a gene controls whether an individual has horns or not. HH and Hh = no horns; hh = horns. Two Muppet Monster are heterozygous for horns. Their genotypes are [a] and their phenotypes are [c]. If these two heterozygous individuals have kids, the probability that their first child will NOT have horns is [b].
Read DetailsThe pedigrees above show the inheritance of traits. Shaded i…
The pedigrees above show the inheritance of traits. Shaded individuals have the condition; unshaded individuals do not. Carriers, if any, are not indicated. Circles indicate XX individuals and squares indicate XY individuals. Pedigree [a] is what we would expect to see for an X-linked recessive condition. Pedigree [b] is what we would expect to see for an autosomal dominant condition. Pedigree [c] is what we would expect to see for a Y-linked condition.
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