Bio ch.10 Flashcards
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Created by:
fashionlove27 on April 22, 2012
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14 terms
Terms | Definitions |
|---|---|
 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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