3. A tropical fish fancier produced an albino zebra fish. It lacked blue stripes characteristic of the
normal zebra fish. When she crossed a normal zebra fish to the albino, all the offspring were
normal. When she crossed two of the normal F1 offspring, X were albino and 1/4 were normal.
When an albino was crossed to the normal offspring, half were albino and half were normal. What
is the genotype and phenotype of each fish mentioned in this problem? 4. In pea plants, the
appearance of flowers along the main stem is a dominant phenotype called "axial" and is
controlled by an allele T. The recessive phenotype, produced by an allele t, has flowers only at the
end of the stem called "terminal". Pod form displays a dominant phenotype "inflated", controlled by
allele F, and a recessive "constricted" form produced by allele f. A pure-breeding axial, constricted
plant is crossed to one that is purebreeding terminal, inflated. A. The F1 progeny of this cross are
allowed to self-fertilize. What is the expected phenotypic distribution of the F2 progeny? List the
genotypes and phenotypes of the F1 generation and the phenotypes of the F2 progeny. B. If an
F1 plant from the initial cross described above, is crossed to a plant that is terminal, constricted,
what is the expected phenotypic distribution among the resulting progeny?.
3 A tropical fish fancier produced an albino zebra fish It.pdf
1. 3. A tropical fish fancier produced an albino zebra fish. It lacked blue stripes characteristic of the
normal zebra fish. When she crossed a normal zebra fish to the albino, all the offspring were
normal. When she crossed two of the normal F1 offspring, X were albino and 1/4 were normal.
When an albino was crossed to the normal offspring, half were albino and half were normal. What
is the genotype and phenotype of each fish mentioned in this problem? 4. In pea plants, the
appearance of flowers along the main stem is a dominant phenotype called "axial" and is
controlled by an allele T. The recessive phenotype, produced by an allele t, has flowers only at the
end of the stem called "terminal". Pod form displays a dominant phenotype "inflated", controlled by
allele F, and a recessive "constricted" form produced by allele f. A pure-breeding axial, constricted
plant is crossed to one that is purebreeding terminal, inflated. A. The F1 progeny of this cross are
allowed to self-fertilize. What is the expected phenotypic distribution of the F2 progeny? List the
genotypes and phenotypes of the F1 generation and the phenotypes of the F2 progeny. B. If an
F1 plant from the initial cross described above, is crossed to a plant that is terminal, constricted,
what is the expected phenotypic distribution among the resulting progeny?
