biology heredity test

how alleles express themselves

sequece of DNA that codes for protien and determines a trait

production of offspring from 1 parent

production of offspring from 2 parents

offspring of the parents that have different forms of the trait

charachteristics that are inherited

expression of both alleles (brown and blue cow)

when traits are inherited incompletely of mix (red and blue make purple)

genetic composition of individual

the passing of traits from one parent to the offspring

genes that have 2 dominant alleles and 2 recessive (RR) (rr)

the study of heredity and traits

change in DNA sequence that affects genetic information

alternate form of a gene

genes that have one dominant and one recessive (Rr)

each pea had 2 alleles that determined it's height, color, and shape

• P1= original breeding plant
• F1= offspring of the P1 generation
• F2= offspring of the F1 generation

those organisms that have the best adaptations to the environment survive

Height, color, and shape

3/4 times

1/4 of the time

the likelyhood that a particular event will take place

prophase 1 & 2; metaphase 1 & 2; anaphase 1 & 2; telophase 1 & 2

• positive= introduces genetic variation
• negative= 2 organisms are needed

• positive= only 1 parent is needed
• negative= no genetic diversity

• male= XY
• Female= XX

cell division where one body cell produces 4 gametes containing 1/2 of the genetic material of a parent cell

a zygote, fertalized egg