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Bio 182 Exam 1/34 Questions with Solutions
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- Bio 182 Exam 1/34 Questions With Solutions
Bio 182 Exam 1/34 Questions with Solutions
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Bio 182 Exam 1/34 Questions withSolutions
Lamarck's ideas - -inheritance of acquired characteristics
-inheritance of acquired characteristics - -changes that affect an organism
during its lifetime would be passed to it's offspring; Ex. Giraffes stretch necks
for food, thus offspring develop larger necks
-evolution by natural selection - -the environment determines which
individuals survive and reproduce
-conditions for natural selection - -phenotypes vary, are heritable, and
affect reproduction
-how do bacterio become immune to antibiotics - -bacteria with variations
that allow them to survive are able to reproduce. They pass down the genes
that grant immunity to the antibiotics
-control - -an element in an experiment that is unchanged by other
variables. used to increase the reliability of an experiment
-independent variable - -the variable that is manipulated during the
experiment
-dependent variable - -the variable that is effected by other variables;
changes in response to the independent variable
-replicates - -doing this increases reliability of the experiment
-sample size - -the number of subjects in the experiment; one too small
produces unreliable results
-heritability - -the proportion of phenotypic variance determined by the
additive effects of the alleles
-how heritability is estimated - -additive genetic variance (Vg) over
phenotypic variance (Vp); Vg/Vp; the relationship between the phenotypes of
parents and their offspring
-T/F More heritable traits lead to more rapid evolution - -True
-Point mutation - -gene mutation in which a single base pair in DNA has
been changed; most likely to form a new allele
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