Genetics Vocabulary #1: Question Preview (ID: 13103)

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An organism that has two different alleles for a trait is said to be _________. (Example Aa)
a) homozygous
b) heterozygous
c) dominant
d) recessive

An organism that has two identical alleles for a trait is said to be ____________. (Example AA, aa)
a) homozygous
b) heterozygous
c) dominant
d) recessive

An organism's ________________ is its genetic make-up or allele combination. (Example, Aa, AA, aa)
a) phenotype
b) genotype
c) heterozygote
d) genetics

Factors that control traits are called
a) genes
b) hybrid
c) codominance
d) interdominant

Different forms of genes are called
a) alleles
b) traits
c) dominant
d) recessive

Gregor Mendel is known as the Father of ________________, the study of heredity.
a) Traits
b) Alleles
c) Genetics
d) Genotype

A ____________________ plant is one that always produces offspring with the same form of a trait as the parent.
a) hybrid
b) heterozygous
c) recessive
d) purebred or true-breeding

The passing of traits from parents to offspring is called
a) heredity
b) traits
c) genetics
d) dominant

An organism's physical characteristics are called
a) genetics
b) traits
c) heredity
d) purebred

In __________, the alleles are neither dominant or recessive, and both alleles are expressed in the offspring. (Example - blue fish + yellow fish = blue fish with yellow spots)
a) recessive
b) incomplete dominance
c) complete dominance
d) codominance

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