genetic inheritance key words Flashcards
(12 cards)
allele
different version of the same gene
gamete
sex cells ( half the amount of DNA as a normal cell )
genome
entire genetic material of an organism
chromosome
structures made of DNA
gene
a small section of DNA and codes for a sequence of amino acids to make a specific protein
heterozygous
alleles which are both different for same characteristic
homozygous
alleles which are both identical for same characteristic
dominant
the allelle thats always expressed if present
recessive
the allele that’s only expressed if there are 2 copies present and no dominant alleles for that gene
genotype
the alleles that determine an organisms characteristics
phenotype
the physical characteristics of an organism
dna
a chemical contained in chromosomes which carries genetic code for an organism