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What is "The study of how traits get passed down from parents to children.
(offspring)
genetics
characteristics which can be easily observed
(eye color,hair)
traits
Who's the teacher of OUR class.
Ms. Lenart
Band on a chromosome that controls a trait.
Made up of DNA
Genes
AKA deoxyribonucleic acid, the molecule that contains the genetic code.
DNA
Different forms of a gene.
Gene: eye color
Allele: brown, blue, green
What is a Recessive Gene
the allele that is hidden when the dominant allele is present
Physical appearance of a person
What is a Genotype
The genetic makeup of a person; your "letters"
identical alleles for a trait
(from mom and dad)
Homozygous (purebred)
What is Heterozygous
different alleles for a trait
(From Mom and Dad) Bb
the allele that always shows itself
represented with a capital letter
BB = Brown Eyes
Bb = Brown eyes
Dominant
Each allele in heterozygous individuals influences the phenotype resulting in a blend of the phenotypes of the parents. (red flower x white flower= pink flower)
When two dominant alleles are equally as strong. Both traits are expressed in the offspring. Example: Blood Type
What is a Punnett Square
A chart is used to show possible gene combinations for the offspring in a cross.