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Zygosity (the noun, zygote, is from the Gr****
zygotos "yoked," from
zygon "yoke") (/zaɪˈɡɒsɪti/) is the
degree to
which both
copies of a
chromosome or...
- done
between parents (P-generation, F0-generation) who are
homozygote dominant and
homozygote recessive, the
offspring (F1-generation) will
always have...
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phenotype of the
heterozygote lies
outside of the
phenotypical range of both
homozygote parents, and
heterozygous individuals have a
higher fitness than homozygous...
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frequencies under random mating are f(AA) = p2 for the AA
homozygotes, f(aa) = q2 for the aa
homozygotes, and f(Aa) = 2pq for the heterozygotes. In the absence...
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heterozygotes for the
alleles under consideration have a
higher fitness than the
homozygote. In this way
genetic polymorphism is conserved.
Evidence for balancing...
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identical alleles, the 50%
would be
halved to 25% to
account for each type of
homozygote,
whether this was a
homozygous dominant genotype, or a
homozygous recessive...
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antagonistic pleiotropy that
favors heterozygotes causing homo****uality
among homozygotes as a by-product. The
influence of
hormones on the
developing fetus has...
- for
yellow pods, g. Thus pea
plants with the pair of
alleles either GG (
homozygote) or Gg (heterozygote) will have
green pods. The
allele for
yellow pods...
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sufficient gene
product to
produce the same,
standard phenotype as seen in the
homozygote.
Haplosufficiency accounts for the
typical dominance of the "standard"...
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value he
chose for the gene was the
midpoint between the two
opposing homozygotes at the one locus. The
deviation from
there to the "greater" homozygous...
