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Genetics/Meiosis
heredity
20
Biology
9th Grade
06/04/2013
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Term
Heredity
 Definition
traits that are passed on from parents to children
Term
Trait
 Definition
inherited characteristics
Term
Genetics
 Definition
the study of heredity
Term
Gametes
 Definition
sperm from a male and the eggs of females
Term
Pedigree
 Definition
a detailed family tree stating the traits of each organism
Term
Zygote
 Definition
a diploid cell
Term
Hybrid
 Definition
the children of parents with different traits
Term
Allele
 Definition
a gene that expresses the trait an organism has
Term
Dominant
 Definition
the trait that is shown
Term
Recessive
 Definition
the trait that is not shown
Term
Phenotype
 Definition
how an organism looks or acts
Term
Genotype
 Definition
the genes in an organism
Term
Homozygous
 Definition
two of the same alleles
Term
Heterozygous
 Definition
two different alleles
Term
Meiosis
 Definition
gametes with half the parents chromosomes
Term
Sex chromosomes
 Definition
the gene that determines the sex of an organism
Term
Sex-linked trait
 Definition
traits on the sex chromosomes
Term
Crossing over
 Definition
the exchange of genes
Term
Incomplete dominance
 Definition
no real dominant trait
Term
Carrier
 Definition
an organism that contains a trait that is not shown but can be passed on
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