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the trait for sickle cell anemia in humans shows a recessive pattern of inheritance. the alleles for sickle cell anemia in two individuals are shown below.

sickle cell anemia alleles
individual alleles
c hh
d hh

which individual(s) would show observable sickle cell anemia?
only c
only d
both c and d
neither c nor d

1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.