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Genetics

Science stuff

TermDefinition
Heredity The passing traits from parents 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 trait
gene The set of information that controls a trait; A segment of DNA on a chromosone that codes for a specific trait.
allesles The different forms of 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
hybrid An organism that has two different alleles for a trait; An organism that is a heterozygous for a particular trait
probability 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 cross.
Phenotype An organism's physical appearance or visible traits.
Genotype An organism's genetic makeup, or allele combinations.
Homozygos Having two identical alleles for a trait
Heterozygos Having two different alleles for a trait
Codaminace A condition in which neither of two alleles of a gene is dominant or recessive
Meosis The process that occurs in the formation of sex cells ( sperm and egg ) by which the number of chromosomes is reduced by half.
Messenger RNA RNA that coppies the coded message from DNA in the nucleus and carries the message into the cytoplasm
Transfer RNA RNA in the cytoplasm that carries an amino acid to the ribosome and adds it to the growing protein chain.
Mutation A change in a gene or chromosome.
Created by: Pandalover76
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