Descriptive word pairs that denote opposite extremes on a dimension are called
a. holophrastic fast-mappers.
b. normative averages.
c. oppositional codifiers.
d. relational contrasts.
Question 2A person who carries two dominant or two recessive genes is said to be ____ for that trait.
a. heterozygous
b. homozygous
c. codominant
d. corecessive
Question 3The first type of relational contrast term that preschoolers express or understand is
a. big vs. little.
b. high vs. low.
c. before vs. after.
d. here vs. there.
Question 4For traits that are determined by single pairs of genes, recessive traits occur on population phenotypes ____ than those of dominant traits.
a. more often
b. equally often
c. less often
d. with weaker strength
Question 5At the end of the preschool period, five- to six-year olds
a. know fewer words than adults but understand most of the grammatical rules of their language.
b. demonstrate significant articulation errors.
c. require schooling in order to learn proper syntax.
d. rely on phrases to communicate their basic needs.
Question 6A recessive trait will appear in the offspring's phenotype when its allele is inherited from
a. the mother only.
b. the father only.
c. neither mother nor father.
d. both father and mother.
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