10 Organisms can be classified based on homology, which is shared characteristics
inherited from a common ancestor. In the past, homologies were based on studies
of anatomical structures and patterns of embryonic development. In more recent
years, the use of molecular biology techniques has allowed homologies to be
compared at the level of nucleotide sequences. Nucleotide sequence comparisons
are possible because all organisms share which of the following?
F DNA bases
G Cellular organelles
H Division of the nuclear chromosomes
J Types of proteins needed for cellular functions
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How does the study of genetic disorders such as pku biologists understand normal alleles?
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Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
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Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative
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10 Organisms can be classified based on homology, which is shared characteristics
inherited from a...
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