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Bri Davis Ch. 5 Science Vocab
Ch. 5 Science Vocab (Heredity)
12
Science
8th Grade
03/21/2014

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Term
Heredity
Definition
the passing of traits form parent to offspring
Term
alleles
Definition
different forms of a single gene
Term
dominant trait
Definition
a trait observed when at least one dominant allele for a characteristic is inherited
Term
genotype
Definition
the inherited combination of alleles
Term
recessive trait
Definition
a trait that is apparent only when two recessive alleles for the same characteristic are inherited
Term
phenotype
Definition
an organism's inherited appearance
Term
genes
Definition
segments of DNA that carry hereditary instructions and are passed from parent to offspring; located on offspring
Term
probability
Definition
the mathematical chance that an even will occur
Term
sex cells
Definition
an egg or sperm; a sex cell carries half the number of chromosomes found in other body cells.
Term
homologous chromosomes
Definition
chromosomes with matching information
Term
meiosis
Definition
cell division that produces sex cells
Term
sex chromosomes
Definition
the chromosomes that carry genes that determine the sex of offspring
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