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