The study of genes and the inheritance of traits
These are features you exhibit physically
( your looks)
Example: Eye color - green
The different versions of a characteristic
Example: blue, green, and brown eyes
Occurs when traits are passed down from parent to child.
Bits of information passed down from parent to child.
Made of chemicals called DNA.
Can be passed on through genes from a parent to the child.
Example : Marfan Syndrome
(Individual is tall, has long arms and legs)
Remember - JOE
Sexual – Sperm fertilizes an egg to produce offspring
Asexual – occurs when 1 organism copies itself to produce offspring
Occurs when a sperm unites with an egg
Another name for the children of a male and female parent
Occurs when genes make a mistake mixing and produce new or different traits in the offspring.
A combination of alleles
Example: TT, Tt, or tt
*We flipped coins to determine the genotype of our critters and puppies.
T – is considered a dominant allele
t – is considered a recessive allele
TT – is dominant
Tt or tT – is dominant
tt - is recessive
Uses mom and dad’s genotypes to determine the possible traits of their offspring.
They are the traits determined by reading the genotype.