GENETICS REVIEW. A physical trait that shows as a result of an organism’s particular genotype. PHENOTYPE.

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Presentation transcript:

GENETICS REVIEW

A physical trait that shows as a result of an organism’s particular genotype. PHENOTYPE

An organism that has two different alleles for a trait. HETEROZYGOUS

The mathematical chance that an event will occur. PROBABILITY

Form of a trait that appears to overshadow or mask another form of the same trait. DOMINANT

A synonym for heterozygous. HYBRID

A characteristic of an organism controlled by a gene. TRAIT

Male sex cell. SPERM

Strands of DNA and protein found in the nucleus of a cell carrying the code for the characteristics of an organism. CHROMOSOME

A synonym for homozygous. PUREBRED

A tool for predicting possible traits in offspring. PUNNETT SQUARE

Occurrence of a trait that makes individuals different from members of the same species. VARIATION

Form of a trait that can disappear in a population but can reappear in future generations. RECESSIVE

Segment of DNA on a chromosome controlling the inheritance of traits. GENE

Female sex cell. EGG

The different forms a gene may have for a trait. ALLELE

An organism that has two identical alleles for a trait. HOMOZYGOUS

The genetic makeup of an organism for a trait; alleles in a gene pair. GENOTYPE

Pair of chromosomes containing alleles for the same traits. HOMOLOGOUS

The passing of traits from parent to offspring. HEREDITY

* 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.

GENETICS THE STUDY OF HEREDITY