[Solved] Use the following information to answer the questions below. A plantlike organism on the planet Pandora can have three recessive genetic traits: bluish leaves, due to an allele (a) of gene A; a feathered stem, due to an allele (b) of gene B; and hollow roots due to an allele (c) of gene C. The three genes are linked and recombine as follows: A geneticist did a testcross with an organism that had been found to be heterozygous for the three recessive traits and she was able to identify progeny of the following phenotypic distribution (+ = wild type): -What is the greatest benefit of having used a testcross for this experiment? A) The homozygous recessive parents are obvious to the naked eye. B) The homozygous parents are the only ones whose crossovers make a difference. C) Progeny can be scored by their phenotypes alone. D) All of the progeny will be heterozygous. E) The homozygous recessive parents will be unable to cross over. Psychiatrist: A medical doctor specializing in the diagnosis, treatment, and prevention of mental illnesses and disorders, often using medication as part of the treatment. Mental Disorders: Health conditions characterized by alterations in thinking, mood, or behavior associated with distress or impaired functioning. Freestanding Professional Schools: Independent educational institutions that offer specialized professional degrees, often in fields like law, medicine, or business, without being affiliated with a larger university. Qualified Psychologists: Professionals who have met the educational, training, and licensure requirements to practice psychology.