Ivygreen
Answered

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PLEASE HELP ME!!!
If a trait that is normally recessive, like blue eyes, occurs in an animal, is that trait dominant in that specific animal’s phenotype? Assuming that animal mates with an animal carrying the traits for both blue and brown eyes, are the offspring of that pairing more likely to have blue eyes than brown? Explain both answers.

Sagot :

The following answer apply to high school biology, which expects clear-cut and simple answers only
Q1: if a recessive trait is shown, it is only because the individual receive a recessive allele each from its parents. Take B as dominant allele and b as recessive, the individual’s genotype would be bb, and blue eyes as phenotype.
Q2:
Parents bb X Bb
Genotypes b b B b
Offsprings Bb bb Bb bb
Or punnet square
B b
b Bb bb
b Bb bb
Offsprings with heterogenous genes will express the dominant trait. Equal chances of an offspring to carry brown eyes than blue.
EmberFitzroy
No. Blue is recessive. (bb)

50% chance of both
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