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Draw and label a diagram that explains in detail how exposure of an XY-containing zygote

(fertilized egg) to a chemical mutagen could result in the same zygote developing into an adult with
Hemophilia A. The chemical mutagen is ethylmethane sulfonate (EMS) that only introduces singlebase substitutions in DNA. Include the following molecules and terms in your diagram: DNA, gene,
template, non-template, mRNA, intron, exon, untranslated regions (UTRs), Factor VIII protein, DNA
polymerase, RNA polymerase, tRNA, codon, anti-codon, ribosome, X and Y chromosomes. Make sure
your diagram accurately describes the flow of information from DNA to protein.

1 Answer

3 votes

Final answer:

Exposure of an XY-containing zygote to a chemical mutagen like EMS can result in Hemophilia A due to a mutation in a gene responsible for producing Factor VIII protein.

Step-by-step explanation:

Detailed Answer:

A chemical mutagen such as ethylmethane sulfonate (EMS) can introduce single-base substitutions in DNA. If an XY-containing zygote (fertilized egg) is exposed to EMS, it can lead to a mutation in a gene responsible for producing Factor VIII protein, which is involved in blood clotting. This mutation can result in Hemophilia A, a genetic disorder characterized by decreased or absent Factor VIII protein.

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