Allele
The different forms of a gene
How do organisms get the way they look?
Inheritance
Dominant
A trait that always shows up when present
What is the purpose of a Punnett square?
To help predict the possible outcomes of alleles.
IE: What color hair a child might have
Genes are made of what?
DNA
Genotype
An Organism's genetic make up
IE: AO and AA are GENOTYPES for type "A" blood
A pattern of inheritance that both alleles for a gene show equally is called?
Codominance
Recessive
A trait that hides whenever a dominant trait is present.
IE: In blood- The O is recessive and "hides". Like with AO genotype making it blood type A.
In a Punnett square, capital letters represent which type of allele?
Dominant
Who created the basic laws of genetics?
Mendel
Phenotype
The physical appearance or the visible trait.
IE: Type B blood is the PHENOTYPE of (BB and BO blood genes)
When one allele is only partially dominant it is called?
Incomplete dominance
IE: A blend- white flowers crossed with red flowers can make pink flowers
Heterozygous
An organism that has two different alleles for a trait
IE: Bb
A lowercase letter (small) represents which type of allele?
Recessive
What is a ratio?
How many out of the total number
IE: 1 out of 4 (1/4)
Heredity
The passing of traits from parents to children (or offspring)
With Incomplete Dominance, are both traits shown or is it a blend of the traits?
A Blend
Homozygous
An organism that has two of the same alleles for a trait.
IE: BB or bb
In a Punnett square with two heterozygous traits (Tt and Tt) what are the possible outcomes?
TT (25%), Tt (50%), tt (25%)
What is a percentage?
An amount of the whole thing.
IE: 50% is half. 1/4 is 25%
Genetics
The study of Heredity
What inheritance involves groups of genes working together to create a single trait it is called?
Polygenic Inheritance
Probability
How likely something will occur
In a Punnett square with one heterozygous trait (Tt) and one homozygous trait (AA or aa) what are the possible outcomes?
TA(s) and tA(s) OR Ta(s) and ta(s)
Who is the best teacher ever?
Mr Wink