Heredity And Genetics 1
A Trait that will not show unless there are 2 alleles of it.
Recessive
A Trait that will show as long as there is at least one allele for it
Dominant
Letter representation of a trait
Genotype
Give an example of a trait passed from parents to offspring
Hair color, eye color, hair texture, height, finger shape....
The type of punnet square where traits "blend" or "mix" when the genotype is heterozygous.
Incomplete dominance
A Genotype with 2 different alleles
Heterozygous
A genotype with 2 of the same alleles
Homozygous
Physical description of a trait
Phenotype
A 4 for letter word that is a small piece of DNA
Gene
when a trait is controlled by more than one gene
Polygenic Inheritance
What type of trait is TT
Homozygous dominant
Why do siblings not look exactly the same?
What are traits that animals gain over time to better survive in the environment?
Adaptations
Two different alleles (Ss, Bb)
Punnet square where traits are both present in a heterozygous genotype
Co-dominance
This type of gene is shown by a lowercase letter
recessive
What would be in the boxes of a Punnett square crossing parent 1: TT and parent 2: TT
All 4 boxes would have TT
X-Shaped Structure made of DNA
Chromosome
What is the genetic probability of a blue flower if B= blue and b = white. Parents: Bb and bb
50%
The type of punnett square where you are looking at multiple traits at once
Dihybrid Cross
Give an example of a heterozygous genotype
Tt, Ss, Aa, etc.
What does homozygous mean?
SAME. (MM)
What would the offspring be for parent 1: TT and parent 2: Tt
TT, TT, Tt, Tt
What would be the offspring of a cross between GG and Gg
GG, GG, Gg, Gg
when there are more than two alleles for a specific trait
Multiple Alleles (Blood Typing)