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Inheritance notes

QuestionAnswer
outward appearance phenotype
genetic make up genotype
two dominant alleles that are expressed at the same time codominant
the law of segregation states that genes two alleles for a trait separate when gametes are formed
Female sex chromosomes XX
Male sex chromosomes XY
difference in traits genetic variation
RR dominant
rr Recessive
Rr heterozygous
RR or rr homozygous
prepreformed to examine genotypesformed to examine genotypes mono hybrid crosses
two traits are studied at the same time dihybrid cross
phenotype that is intermediate between the two allelic traits can be observed incompletely dominant
alternate form of intermediate trait codominance
more than two different alleles present in varying amounts in a given population multiple alleles
a particular phenotype may be determined by more than one gene polygenic inheritance
phenotypic family tree pedigree
change in the nucleotide sequence of an organisms genetic material mutation
apparent in human pedigrees in the presence of a trait sex-linked
used to see the chances of the offspring and what they will have punnett square
alleles that control a trait one dominant, one recessive
why are males more likely to get something than females males only have one X chromosome
second different allele recessive
process of crossing over results in new combinations of alleles genes are located on separate chromosomes
Created by: kareyhoward
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