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genetics vocab

TermDefinition
heredity the passing of physical characteristics from parents to offspring.
trait Each different form of characteristic such as stem height or seed color.
genetics the scientific study of heredity.
fertilization a new organism begins to form when egg and sperm join in the process
purebred organism is the offspring of many generations that have the same trait
gene The factors that control a trait
alleles the different forms of a gene.
dominant allele is one whose trait always shows up in the organism when the allele is present.
recessive allele hidden whenever the dominant allele is present
hybrid organism has two different alleles for traits
probability to predict the results of particular event
punnett square a chart that shows all the possible combinations of alleles that can result from a genetic cross
phenotype its physical appearance or visible traits
genotype its genetics makeup or allele combinations
homozygous an organism that has two identical alleles for a trait
heterozygous organism that has to different alleles for a trait
codominance the alleles are neither dominant nor recessive
meiosis is the process by which the number of chromosomes is reduced by half to form sex cells sperm eggs
messenger DNA copies the coded message from DNA in the nucleus
Transfer DNA carries amino acids to the ribosome and adds them to the growing protein
Mutation is any change in a gene or chromosome.
Created by: jaydash4
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