genetics review. a physical trait that shows as a result of an organism’s particular genotype....
TRANSCRIPT
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GENETICS REVIEW
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A physical trait that shows as a result of an organism’s particular
genotype.
PHENOTYPE
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An organism that has two different alleles
for a trait.
HETEROZYGOUS
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The mathematical chance that an event
will occur.
PROBABILITY
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Form of a trait that appears to
overshadow or mask another form of the
same trait.
DOMINANT
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A synonym for heterozygous.
HYBRID
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A characteristic of an organism controlled by
a gene.
TRAIT
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Male sex cell.
SPERM
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Strands of DNA and protein found in the
nucleus of a cell carrying the code for the characteristics of
an organism.
CHROMOSOME
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A synonym for homozygous.
PUREBRED
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A tool for predicting possible traits in
offspring.
PUNNETT SQUARE
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Occurrence of a trait that makes individuals
different from members of the same
species.
VARIATION
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Form of a trait that can disappear in a population but can reappear in future
generations.
RECESSIVE
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Segment of DNA on a chromosome
controlling the inheritance of traits.
GENE
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Female sex cell.
EGG
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The different forms a gene may have for a
trait.
ALLELE
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An organism that has two identical alleles
for a trait.
HOMOZYGOUS
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The genetic makeup of an organism for a trait; alleles in a gene pair.
GENOTYPE
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Pair of chromosomes containing alleles for
the same traits.
HOMOLOGOUS
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The passing of traits from parent to
offspring.
HEREDITY
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* Knowing the vocabulary is half the battle . . . You must also know how to
apply the terminology in order to answer
questions about the relationship between
parents and their offspring.
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GENETICS
THE STUDY OF HEREDITY