Explanation: The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.
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The things that are changing in an experiment are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled
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cientists would use a control sample that has no DNA from bighead carp in Edna surveillance in order to verify that no DNA has contaminated the gel. It would eliminate certain errors in the experiment. What are some of the things that your DNA can be contaminated with?
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I dont know what your experiment is but the control variable is the thing your keeping the same.
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