The study of heredity
Genetics
different forms/letters of a gene
Allele
when the two alleles are the same for a certain trait
Homozygous
In the punnet square shown, what is the probability that the blue eye gene will show in the offspring?

50%
Create a punnet square for this mother (Mm) and father (MM) genotype for skin tone
M . m
M . MM Mm
M . MM Mm
How many chromosomes do you get from your mother?
23 chromosomes
The type of allele that will will take over for a certain trait
dominant
When the two alleles are different for a certain trait
heterozygous
In the punnet square shown, what is the probability that the dominant gene for a yellow plant (Y) will show in the offspring?
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50%
Creat a punnet square for the Dimples gene (D) if both parents are heterozygous for the trait.
D . d
D . DD . Dd
d . Dd . dd
The tool used to determine the probability that a trait will happen
Punnet Square
The type of allele/trait that will be covered or cannot be seen is called..
recessive trait
Describe the alleles
WW
(two words)
homozygous dominant
In the punnet square shown, what is the probability that the recessive gene will show in the offspring?

25%
Create a punnet square for the right handed gene (H) if the father is homozygous dominant and the mother is homozygous recessive.
H . H
h . Hh . Hh
h . Hh . Hh
Within the example (R r) what does the capital letter (R) represent?
Dominant gene
The genetic make up for the trait (RR, Rr, or rr) is known as the Genotype or the Phenotype?
Genotype
Describe the alleles
Ww
Heterozygous
In the punnett square shown, what is the probability that the recessive gene for detached earlobes will show in the offspring?


0%
What is this a picture of?
male
Gregor Mendel
The physical appearance of a trait (blue eyes, curly hair) is known as the Genotype or the Phenotype?
Phenotype
Describe the alleles
ww
(2 words)
homozygous recessive
What is the name for the sequence of a gene that determines a specific trait like brown eyes?
allelle
When writing genes in a Punnett Square, what type of letter is used for the dominant gene?
capital letter