MGY 250 Unit 4 Quiz Questions with Verified Solutions Latest Update 2025/2026
Go to the OMIM website, www.omim.org (Links to an external site.) and look up Rett Syndrome,
312750, in the search bar. In the toolbar on the left, click on Population Genetics. What is the
frequency of Rett syndrome in girls in metropolitan Tokyo?
1/20,000
1/200,000
1/2,000
1/200 - Answers 1/20,000
The inheritance pattern of this pedigree is best described as (picture from quiz not included):
X linked recessive
Autosomal dominant
X linked dominant
Mitochondrial
Autosomal recessive
Y linked - Answers Mitochondrial
The ethical framework of principlism draws from the ethical principles of (select all that apply):
Justice
Non-maleficence
Autonomy
Beneficence - Answers Justice
Non-maleficence
Autonomy
Beneficence
, Factors that can mediate variable expressivity and incomplete penetrance include (select all
that apply):
Epigenetic altering of gene expression
Different mutations of the same gene
Mutations in different genes that cause the same disease
Genetic changes at a second site that act on the gene of interest
Exposure to environmental effects to which the individual has a predisposed sensitivity -
Answers Epigenetic altering of gene expression
Different mutations of the same gene
Mutations in different genes that cause the same disease
Genetic changes at a second site that act on the gene of interest
Exposure to environmental effects to which the individual has a predisposed sensitivity
Allowing individuals to make decisions for themselves is best described by the principle of:
Autonomy
Justice
Non-maleficence
Beneficence - Answers Autonomy
When drawing pedigrees, unknown sex is indicated by:
A circle
A diamond with a dot in the middle
A diamond shape
A square - Answers A diamond shape
Gigi and Zayn are going to have a baby daughter. Gigi (the mother) is a carrier for an X-linked
recessive disorder. Zayn (the father) is unaffected. The probability that they will have an
Go to the OMIM website, www.omim.org (Links to an external site.) and look up Rett Syndrome,
312750, in the search bar. In the toolbar on the left, click on Population Genetics. What is the
frequency of Rett syndrome in girls in metropolitan Tokyo?
1/20,000
1/200,000
1/2,000
1/200 - Answers 1/20,000
The inheritance pattern of this pedigree is best described as (picture from quiz not included):
X linked recessive
Autosomal dominant
X linked dominant
Mitochondrial
Autosomal recessive
Y linked - Answers Mitochondrial
The ethical framework of principlism draws from the ethical principles of (select all that apply):
Justice
Non-maleficence
Autonomy
Beneficence - Answers Justice
Non-maleficence
Autonomy
Beneficence
, Factors that can mediate variable expressivity and incomplete penetrance include (select all
that apply):
Epigenetic altering of gene expression
Different mutations of the same gene
Mutations in different genes that cause the same disease
Genetic changes at a second site that act on the gene of interest
Exposure to environmental effects to which the individual has a predisposed sensitivity -
Answers Epigenetic altering of gene expression
Different mutations of the same gene
Mutations in different genes that cause the same disease
Genetic changes at a second site that act on the gene of interest
Exposure to environmental effects to which the individual has a predisposed sensitivity
Allowing individuals to make decisions for themselves is best described by the principle of:
Autonomy
Justice
Non-maleficence
Beneficence - Answers Autonomy
When drawing pedigrees, unknown sex is indicated by:
A circle
A diamond with a dot in the middle
A diamond shape
A square - Answers A diamond shape
Gigi and Zayn are going to have a baby daughter. Gigi (the mother) is a carrier for an X-linked
recessive disorder. Zayn (the father) is unaffected. The probability that they will have an
