Heredity Flashcards
What is a trait?
a characteristic of an organism includes physical attributes.
What are genes
genes are sequences of DNA that code for specific products
What is gene expression?
the synthesis of products by a cell-based on its structure in DNA
What is an Allele
is a variant of a gene
True or false; individuals inherit two allels for every gene
true; mother and father
what is homozygosity
two allels that are the same
what is heterozygority
two alleles that are different
What is a genotype
a combination of allels for a gene
what is a Phenotype
the observal characteristics e.g. hair colour
What is dominant inheritance?
is the most common mode of biological inheritance- upper case letter
What is recessive
least common of biglogical inheritances - lower case letter
What is co-dominance
both alleles of heterozygota determine the phenotype
what is incomplete dominace
a blending of phenotype occurs
