A dihybrid cross of two contrasting pure-breeding
organisms
a. produces homozygous offspring.
b. must produce a phenotype different from either
pure-breeding parent.
c. results in the disappearance of the recessive
traits in the first generation.
d. takes place only in the laboratory under
precisely controlled conditions.
e. will result in the immediate formation of another
pure-breeding variety.
Answer: c
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