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30 Cards in this Set

  • Front
  • Back
study of how traits are inherited from 1 generation ot the next
genetics
basic unit of heredity
gene
location of genes
chromosomes
composition of genes
DNA
alternative form of a gene
allele
genetic makeup of an individual
genotype
physical manifestation of the genetic makeup of an individual
phenotype
what a gene controls in an organism
specific trait
expressed allele
dominant
silent allele
recessive
organism that contains 2 copies of the same allele
homozygous
organism that carries 2 different alleles
heterozygous
where the dominant allele is expressed
phenotype
when only one trait is being studied
monohybrid cross
indicates all potential progeny genotypes
punnett square
having 3 copies of a chromosome
trisomy
having 1 copy of a chromosome
monosomy
changes in the genetic info. of a cell coded in the DNA
mutations
mutations here can lead to tumors
somatic cells
mutagenic agents
carcinogens
basis of heredity
DNA
basic unit of DNA
nucleotide
composition of a nucleotide
deoxyribose bonded to a phosphate group and nitrogenous base
2 kinds of bases
purines and pyrimidines
2 kinds of purines in DNA
adenine and guanine
2 kinds of pyrimidines in DNA
cytosine and thymine
goes w/ T
A
goes w/ G
C
translates DNA language
mRNA
triplets that the mRNA translates
codon