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Genetics

Unit 4: Genetics

TermDefinition
acquired trait Skill that you learned, NOT inherited. Examples: reading, writing.
dominant trait Traits that hide other traits when passed on to offspring. Example: brown eyes,
recessive trait Traits that do not show unless both recessive alleles are present. Example: blue eyes
genotype The "genetic makeup" of an individual organism. Example: FF, Ff, ff.
phenotype The physical appearance of an organism. Example: Blue eyes, black fur.
heterozygous Having one dominant and one recessive allele for a specific trait. Example: Ff or Rr or one capital letter and one lowercase.
homozygous dominant Having two identical dominant alleles for a specific trait. Example: FF or RR or any combination of two capital letters.
homozygous recessive Having two identical recessive alleles for a specific trait. Example: ff or rr or any combination of two lowercase letters.
allele The variance in a gene, which occurs on a fixed spot on a chromosome.
chromosomes Thread like structures found in the nucleus of a cell that contains all DNA.
heredity The transfer of traits from parents to their offspring.
Punnett Square A diagram used to determine the probability (chance) of an offspring having a particular trait.
Created by: MrsBurton2024
 

 



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