If an individual allele has more than one effect on the phenotype, this is called
A. pleiotropy.
B. epistasis.
C. blending inheritance.
D. multiple alleles.
E. polygenic inheritance.
A. pleiotropy.
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The simultaneous use of both organic and inorganic forms of carbon is called ________.
A. metatrophy B. osmotrophy C. omnitrophy D. mixotrophy
How does an enzyme work to catalyze a reaction?
A. It supplies the energy to speed up a reaction. B. It lowers the energy barrier needed for reactants to achieve the transition state. C. It lowers the energy of activation of a reaction D. It supplies the energy to speed up a reaction and lowers the energy barrier needed for reactants to achieve the transition state. E. It lowers the energy barrier needed for reactants to achieve the transition state or lowers the energy of activation of a reaction.
The hypocotyl connects the radicle with the cotyledons. Indicate whether the statement is true or false
Which of the following statements best describes the rationale for applying the principle of parsimony in constructing phylogenetic trees?
A) Parsimony allows the researcher to "root" the tree. B) Similarity due to common ancestry should be more common than similarity due to convergent evolution. C) The molecular clock validates the principle of parsimony. D) The outgroup roots the tree, allowing the principle of parsimony to be applied.