Bio ch.10 Flashcards

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trait

a variation of a particular character

genetics

study of heredity

cross-fertilization

process by which sperm from one flower's pollen fertilizes the eggs in a flower of a different cell

hybrids

offspring of two different true-breeding varieties

monohybrid cross

mating of two organisms that differ in only one character

alleles

alternative forms of genes

homozygous

having identical alleles for a gene

heterozygous

having different alleles for a gene

dominant

descriptive of an allele in a heterozygous individual that appears to be the only one affecting a trait

recessive

descriptive of an allele in a heterozygous individual that does not appear to affect a trait

phenotype

observable traits of an organism

genotype

genetic makeup of an organism, an organism's combination of alleles

testcross

mating of an individual of unknown genotype but dominant phenotype with a homozygous recessive individual

dihybrid cross

mating of two organisms that differ in two characters

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