Definitions
this gene will mask the expression of the other gene
What is Dominant trait
What is a mutation?
A naturally-occurring change in DNA
Physical Characteristics like : Big nose
What is Phenotype
What is the purpose of a Punnett Square?
To determine the possible genotypes of the offspring.
Also called Purebred
what is Homozygous
The trait that is expressed physically.
What is Phenotype
Hh = the genotype. What do we call this genotype and what is the phenotype for this organism?
H = big hands
h = little hands
The genotype is known as heterozygous and the phenotype is big hands.
The passing of physical characteristics from parent to offspring
What is Heredity
Do lowercase letters represent the dominant or recessive gene?
What is recessive - ex. r
Where was Gregor Medel from?
Where is Austria
An individual that has two of the same gene.
What is homozygous
GG or Gg
What is Genotype
True or False.
Homozygous dominant, homozygous recessive and heterozygous are all examples of phenotypes.
What is False
One flower is heterozygous red (Rr) and it is crossed with a homozygous white (rr) plant. Use a Punnett square to determine the probability of one of their offspring having a red color.
50% - Rr Red
50% - rr White
What is the process by which evolution happens which was explained to us by Charles Darwin and Alfred Wallace?
what is Natural Selection.
The best suited traits are passed on through the process of Natural Selection.
An individual that has two different genes for a certain trait
What is heterozygous
How many pairs of chromosomes does a human contain?
What is 23 pairs
This type of organism has 2 recessive alleles for a trait
Homozygous recessive
Create a Punnett Square
Father is heterozygous and mother is homozygous.
B = Brown eyes b = blue eyes
What percent of the children are homozygous dominant?
50% - Bb Half will have brown eyes
50% - bb Half will have blue eyes
What is the name of the monk who studied the traits found in pea plants?
Who is Gregor Mendal.
This trait will only be expressed when it is paired with another gene that is the same
What is recessive trait
Where are genes located inside the cell?
What is the Nucleus
What is another word for heterozygous?
What is hybrid
Create a Punnett Square
Father is homozygous dominant. Mother is homozygous recessive.
V = Green teeth v = yellow teeth
What are the children's phenotype(s)?
Is their genotype dominant or recessive, heterozygous or homozygous?
100% - Vv
Heterozygous Dominant
Complete the Punnett Square on the white board
BB X Bb
50% - BB
50% - Bb