Gene Expression Flashcards
what are the building blocks of heredity?
genes
what are character traits?
the genetically predetermined features of an organism
what is heredity
the transmission of characteristics from parent to offspring
what is crossbreeding?
the breeding of separate strains of the same species in order to create new traits
what is pure line?
individuals from the same species producing offspring with the same trait
what is a hybrid?
offspring produced from crossbreeding of two genetically different individuals
what are alleles
alternative forms of a gene
how many alleles do humans inherit for one trait. where does it come from?
2, one from each homologous chromosome you got from each parent
when do alleles get separated?
when gametes form, and each gamete is randomly distributed
what is a genotype?
the genetic makeup (alleles) of an organism
what is a phenotype?
the appearance of an organism as a result of its genotype
what is the difference between homozygous and heterozygous?
homozygous: genotype it which both alleles of a pair are the same
Heterozygous ; genotype in which alleles of a pair are mixed
