If any of the traits that Mendel worked with had been due to linked genes, his dihybrid crosses would have
A. produced more offspring.
B. produced less offspring.
C. exhibited a typical phenotypic ratio of 9:3:3:1.
D. produced sterile offspring.
E. had different results.
E. had different results.
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Which statement regarding porphyrin synthesis pathways is CORRECT?
A. The succinyl-CoA/glycine porphyrin pathway is used by all bacteria, photosynthetic eukaryotes, and archaea. B. The porphyrin biosynthetic pathways are unified at the step of 5-aminolevulinic acid. C. The glutamate porphyrin pathway is used by all non-photosynthetic eukaryotes and alpha-proteobacteria. D. There is very little conservation of porphyrin synthesis pathways between eukaryotes, bacteria, and archaea.
A(n) ________ mycelium is a branching network of fibers on and/or beneath the surface of the agar growth medium.
Fill in the blank(s) with the appropriate word(s).
What type of inheritance fits the data in this pedigree?
A) sex-linked dominant
B) autosomal recessive
C) autosomal dominant
In humans, freckles are dominant to no freckles, and unattached earlobes are dominant to attached earlobes. Two individuals who both have freckles and unattached earlobes have a child with no freckles and attached earlobes. What are the genotypes of the
parents? (F = freckles; E = unattached earlobes) A) FFEE x FFEe B) ffee x ffee C) FFEE x ffee D) Ffee x FFEE E) FfEe x FfEe