Details

Title: Ch. 12

Description: Definitions

Total Flash Cards: 16

Created: 04/14/2010 00:06:12

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Term
Genotype
Phenotype
 Definition
Actual organism, PP Pp.
Describes outward appearance, purple.
Term
Homozygous Dominant
 Definition
both alleles are the same and dominant
Term
Heterozygous Dominant
 Definition
One dominant, one recessive Pp
Term
Homozygous Recessive
 Definition
carries two copies of the allele that codes for the recessive trait, pp
Term
P Generation
 Definition
The original parent plant.
Term
F 1 Generation
 Definition
Product of the P Generation, true-breeds to create F 2 generation.
Term
F 2 Generation, and the phenotypic ratio
 Definition
Product of F 1 Generation. Phenotypic ratio is 3:1
Term
Law of Segregation
 Definition
Adult plants carry a pair of alleles, and it gives offspring 1 of the 2 in the pair.
Term
Independent Assortment
 Definition
That in heterozygous alleles, the two different alleles have no effect on the chosen other allele.
Term
CoDominance
 Definition
Both alleles are pretty much equal effect, and both are detectable in heterozygotes
Term
Incomplete Dominance
 Definition
Recessive alleles are able to be detected
Term
Pleiotropy
 Definition
Principle that genes can alter the effect of other genes
Term
Epistasis
 Definition
interaction between different genes
Term
Polygenic Inheritance
 Definition
Basis of quantative traits, a general characteristic measured widely, sometimes effected by environment
Term
Pedigree Charts
 Definition
shows all of the known phenotypes for an organism and its ancestors
Term
Locus
 Definition
Location of a gene/s on a chromosome