Glossary of Chapter 10 Biology Cards from Prentice Hall Biology: Exploring Life

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Trait (pg. 206)
variation of a particular inherited character
Genetics (pg. 206)
study of heredity
Cross-fertilization (pg. 207)
process by which sperm from one flower's pollen fertilizes the eggs in the flower of a different plant
hybrid (pg. 208)
offspring of two different true-breeding varities
monohybrid cross (pg. 208)
mating of two organisms that differ in only one character
allele (pg. 209)
alternative form of a gene
homozygous (pg. 209)
having identical alleles for a gene
heterozygous (pg. 209)
having differnt alleles for a gene
dominant (pg. 209)
description of an allele in a heterozygous individual that appears to be the only one affecting a trait
recessive (pg. 209)
description of allele in a heterozygous individual that does not appear to affect a trait
Punnett square (pg. 210)
diagram showing the probabilities of the possible outcomes of a genetic cross
phenotype (pg. 211)
observable traits of an organism
genotype (pg. 211)
genetic makeup of an organism; an organism's combination of alleles
testcross (pg. 211)
mating of an individual of unknown genotype but dominant phenotype with a homozygous recessive individual
dihybrid cross (pg. 212)
mating of two organisms that differ in two characters

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