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genetics vocab.

TermDefinition
Heredity The passing of physical characteristics from parent to offspring.
Trait A characteristic that an organism can pass on to its offspring through its genes.
Genetics The scientific study of heredity.
Fertilization The joining of a sperm and an egg.
Purebred The offspring of many generations that have the same traits.
Gene The set of information that controls a trait; a specific trait.
Alleles The different forms of a gene.
Dominant allele An allele whose trait always shows up in the organism when the allele is present.
recessive allele An allele that is masked when a dominant allele is present.
hybird An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait.
probadility A number that describes how likely it is that an event will occur.
Punnett Square A chart that shows all the possible combinations of alleles that can result from a genetic root.
Phenotype An organism's physical appearance,or visible traits.
Genotype An organism's genetic makeup,or allele combinations.
Homozygous Having two identical alleles for a trait.
Heterozygous Having two different alleles for a trait.
Codominance A condition in which neither of two alleles of a gene is dominant or recessive.
Meiosis The process that occurs in the formation of sex cells by which the number of chromosomes is reduced by half.
Messenger RNA Copies the coded message from the DNA in the nucleus,and carries the message to the ribosome in the cytoplasm.
Transfer RNA Carries amino acids to the ribosome and adds them to the growing protein.
Mutation Any change in a gene or chromosome.
Created by: donovan.moses
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