Afather with type b blood and mother with type a blood have a child. their child, while in a biology lab at school, tests her blood and discovers she has type o blood. does she have any concerns about her parentage?
a. yes, because she should have type ab blood if they are her true biological parents.
b. no, because type o blood is possible if her parents both had genotypes ab.
c. no, because both of her parents could be heterozygous.
d. yes, because both of her parents might be heterozygous.
e. no, because blood types a and b are codominant.

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

As scientist had investigated evolution from a variety fields they have found

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.