Review Unit 9.2: Inheritance Of Mutations: Question Preview (ID: 19313)

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An idividual with the genotype XbY, would look like this in a pedigree.
a) a circle that is shaded in.
b) a square that is shaded in
c) a circle that is unshaded
d) a square that is unshaded

In a pedigree, a circle represents...
a) a male
b) a female
c) a child
d) a mutation

In a pedigree, a shaded in shape represents...
a) a child
b) an offspring
c) an affected individual
d) a normal individual

In a pedigree, and unshaded shape represents...
a) an affected individual
b) a normal individual
c) an offspring
d) a parent

In a pedigree, a square represents...
a) a male
b) a female
c) a child
d) a mutation

Which on is NOT true of Autosomal mutations?
a) A mutation that is passed on by the sex-cells
b) Skin cancer is an example of one.
c) A mutation of the body(somatic) cells.
d) Affect the parent but not the offspring

Which one is NOT true of a Germline mutation?
a) All X-linked mutations are Germline mutations
b) Parent is not affected but offspring is.
c) Mutation is passed on through sex-cells
d) Body(somatic) cells are mutated

What is a pedigree?
a) A tool used by geneticists to predict the ratio of possible phenotypes in the offspring.
b) A photomicrograph of the chromosomes of a human.
c) A chart or diagram used to trace inheritance patterns in a family.
d) All of the above

Which one is NOT true of 'Sex-Determination'?
a) The X and Y chromosomes decide the gender.
b) It is an 'X-Linked' Trait
c) XX= Female and XY=male
d) There is 50/50 chance of producing either gender.

Which one is NOT true of 'X-Linked' traits?
a) Passed on by the X-chromosome
b) Can be dominant or recessive.
c) Most likely to affect males
d) Are cancelled by Y-linked traits

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