ch.5 study

17 cards·by claudiamar300

what term refers to physical characteristics that are studied in genetics?

traits

factors that control a trait are called

genes

what is an organism with 2 different alleles called

hybrid or heterozygous

an organism with 2 of the same alleles is called

a purebred or a homozygous

AA means

2 dominant alleles

Aa means

1 dominant and 1 resscessive alleles

what are different forms of a gene called

alleles

what is probability

to predict the results of a particular event

what does a Punnett Square show

all the possible allele combinations

what is a phetotype

the physical appearance of an organism

what is a genotype

the genetic makeup of an organism

what is a homozygous

an organism with the same alleles

what is codominance

when alleles are neither recessive or dominant

what is the chromosome theory of inheritance

that a offspring get one gene from each parent

what is meiosis

when the number of chromosomes are divided in half to form sex cells

what is a mutation

a change in a gene or chromosome

when is a mutation harmful

when it affects the reproduction or heart systems