Vocabulary
This carries information in DNA that passes to offspring.
Genes
Draw the Punnett Square for the following (HH X Hh)
HH / Hh
HH / Hh
HH / Hh
HH / Hh
What is the percentage of offspring that have a recessive gene?
50%
A different version of the same gene.
Allele
The pair of alleles for a specific gene that determine a trait. (Tt)
Genotype
This trait is strongest, and always appears if it is in the genotype.
Dominant
Draw the Punnett Square for the following (r r X R r)
Rr / rr
Rr / rr
Rr / rr
Rr / rr
What percent will have a recessive phenotype?
50%
Give me two examples of alleles that we have talked about?
Examples are:
Brown eyes vs Blue eyes
Dark hair vs Blond hair
Black fur vs Yellow fur
Purple flower vs White flower
The visible trait that is seen in the organism. (Brown hair)
Phenotype
This trait is weak, and only appears if there is no stronger trait
Recessive
Draw the Punnett Square for the following (AA X AA)
A A / AA
AA / AA
A A / AA
AA / AA
What is the percent of recessive trait?
0%
Using the letter G show me what a heterozygous genotype look like?
G g
Sonic is blue
Knuckles is red
B=blue b= red
What is Sonic's phenotype?
Blue
When the genotype is both capital letters or both little letters. (TT or tt)
Homozygous
Draw the Punnett Square for the following (Tt X Tt)
TT / Tt
Tt / tt
R r / R r
R r / R r
What are the percentages for the genotypes present?
100%
0%
Using the letter E show me what a homozygous dominate genotype look like?
E E
Sonic is blue
Knuckles is red
B=blue b= red
What is Sonic's genotype?
B B or B b
When the genotype is one capital letter and one small letter. (Tt)
Heterozygous
Draw the Punnett Square for the following (r r X R R)
R r / R r
R r / R r
TT / Tt
Tt / tt
What are the percentages for all three sets of genotypes?
25%
50%
25%
Using the letter N show me what a homozygous recessive genotype look like?
n n
Sonic is blue
Knuckles is red
B=blue b= red
What is Knuckles' genotype?
b b