American School Predicting Trait Inheritance Discussion
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Part A: Design a Species
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12pt
I choose to explore unicorn hybrid as my major species. It is a species that could utilize its horn as a selfdefense mechanism. Often some unicorns have wings while others do not have. It is a part that may also be
used to help the unicorn survive through shifting from one place to another. Let letter E represent a winged
unicorn (dominant) and letter e for unicorns without wings (recessive). Letter O will be used to describe long
unicorn horns and o for the short unicorn horn.
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Part B: Determine Trait Variation in the Species
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Trait 1: Simple dominant/recessive inheritance
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Part D: Make Punnett Squares
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12pt
Father’s Alleles
Trait:
e
e
E
Ee
Ee
e
ee
ee
Father’s Alleles
Trait:
O
O
o
Oo
Oo
o
Oo
Oo
Father’s Alleles
Trait:
M
m
M
m
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Part E: Evaluate the Results
Question 1
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12pt
In the following test, there are eight possible genotypes with a 12.5% opportunity to be inherited.
Wings: Ee had a 50%, ee had a 50% chance
Horn: Oo had a 100% chance
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Question 2
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12pt
Yes, the available genotypes would affect the offspring since when it is born without wings, it would not have
the capacity to escape from predators. Also, if it is born with a long thin horn, it would not be in a better
position to break something from nature.
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Question 3
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The offspring can exhibit a trait that is not present in either of the parent. This is because these traits can be
recessive traits that could be present in more than one gene. Often recessive traits could be less resent in
parents; however, if both of the parents have similar recessive characteristics, then it could be present in
offspring or future offspring. Earlier generations could also contribute to the development of recessive traits.
Basically, a recessive trait can be transferred from a grandparent or a great-grandparent to a future offspring.
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Given that the parents' genotype determines the offspring's phenotype, it is possible to predict the offspring's
phenotype just by looking at the phenotypes of the parents. The result of the parents' allele combinations is
their genotype (Rudolf-Pilih et al., 2019). The phenotype of the progeny is determined by the alleles, which are
various gene versions. By examining their DNA, one can identify the parents' genotype. A gene with two
different alleles in each parent will probably have two different alleles in the progeny.
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