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Genetics vocab

TermDefinition
Heredity The passing of traits from parents to their offspring
Trait A characteristic that an organism can pass on to its offspring through genes
Fertilization The joining of a sperm and a egg
Purebread The offspring of many generations that have the same traits
Gene the set of information that controls a trait a segment of DNA on a chromosome that codes for 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
Hybrid An organism that has two different alleles for a trait an organism that is hetrozygous 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 possible combinations of alleles that can result from a genetic cross
phenotype An organisms physical appearance
Genotype An organisms genetic makeup, or allele combinations
Homozygous Having two identical alleles for a trait
hetrozygous having two different alleles for a trait
codominance A condition in which neither of two alleles of a gene is dominant or ressesive
meiosis The process that occurs in the formation of sex cells by which the number of chromosomes s reduced by half
messenger RNA RNA that copies 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 ribosomes and adds it to the growing proiten chain
mutation A change in gene or chromosome
Created by: Haleylove123
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