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Bio Ch 6.3-6.6

Biology Ch. 6.3-6.6

QuestionAnswer
characteristic that is inherited trait
study of the heredity patters and variation of organisms genetics
type of organism whose ancestors are genetically uniform purebred
mating of two organisms cross
Mandel's first law, stating that (1) organisms inherit two copies of genes, one from each parent, and (2) organisms donate only one copy of each gene in their gametes because the genes separate during gamete formation law of segregation
specific region of DNA that codes for a particular protein gene
any of the alternative forms of a gene that occurs at a specific place on a chromosome allele
characteristic of having two of the same alleles at the same locus of sister chromatids homozygous
characteristic of having two different alleles that appear at the same locus of sister chromatids heterozygous
all of an organism's genetic material genome
collection of all an organism's genetic informatoin that codes for traits genotype
collection of all of an organism's physical characteristics phenotype
allele thst is expressed when two different alleles are present in an organism's genotype dominant
allele that is not expressed unless two copies are present in an organism's genotype recessive
model for predicting all possible genotypes resulting from a cross, or mating Punnett square
cross, or mating, between organisms that involves only one pair of contrasting traits monohybrid cross
cross between an organism with an unknown genotype and an organism with a recessive phenotype testcross
cross, or mating, between organisms involving two pairs of contrasting traits dihybrid cross
Mendel's second law, stating that allele pairs separate from one another during gamete formation law of independent assortment
likelihood that a particular event will happen probability
exchange of chromosome segments between homologous chromosomes during meiosis I crossing over
tendency for genes located close together on the same chromosome to be inherited together genetic linkage
Created by: kennedy26
 

 



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