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Which condition would most likely upset the stability of an ecosystem
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
Damage to which structure will most directly disrupt water balance within a single-celled organism?
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
Enzyme molecules normally interact with substrate molecules. Some medicines work by blocking enzyme activity in pathogens. These medicines are effective because they
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
Which statement indicates one difference between the gene that codes for insulin and the gene that codes for testosterone in humans?
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
A child has brown hair and brown eyes. His father has brown hair and blue eyes. His mother has red hair and brown eyes. The best explanation for the child having brown hair and brown eyes is that
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
Which substances are found on cell surfaces and respond to nerve and hormone signals?
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
Which factor is least likely to contribute to an increase in the rate of evolution?
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
The function of most proteins depends primarily on the
a long period of environmental stability
have a shape that fits into the enzyme
The gene for insulin has a different sequence of molecular bases than the gene for testosterone
cell membrane
a greater mass of animals than plants
receptor molecules
the child received genetic information from each parent
type and order of amino acids
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