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Genetics 1
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Genetics 4
Genetics 5
100
How many dominant alleles are needed for a particular trait to show up?
1
100

Short sections of DNA that provide the code to build proteins for a specific trait

genes

100

Genotypes consists of how many alleles? 

2

100
This is the study of heredity
genetics
100
TT and tt are both examples of a ___________ trait.
purebred/homozygous
200
What is another word for heterozygous?
hybrid
200

What is another word for purebred?

homozygous or true breed

200

What shapes are used in a pedigree for males and females?

Square for males

Circle for females

200

This is an organism's genetic makeup, usually written using uppercase and lowercase letters.

Genotype

200
This is an organism's physical appearance.
Phenotype
300

What did Gregor Mendel cross-pollinate in his genetics experiments?

pea plants

300

An organism with 2 different alleles (upper and lower case genotype) for a trait is called a ______.

Hybrid/heterozygous

300

This model shows all of the possible outcomes of a genetic cross.

Punnett square

300
This type of organism has 2 different alleles for a trait
Heterozygous
300
What happens when a recessive allele is paired up with a dominant allele?
It is hidden / doesn't show up
400

A word that means the numerical likelihood of something happening. 

Probability

400
This type of organism has 2 dominant alleles for a trait.
Homozygous dominant
400

A change in an organism's DNA is called what? 

mutation

400

Using the Punnett Square below with Green being the dominant trait and yellow being the recessive trait.  What is the probability the plant will be yellow? 

          G                    g

g      Gg                   gg


g      Gg                     gg

What is 50%?

400
This type of organism has 2 recessive alleles for a trait
Homozygous recessive
500

This is the passing of traits from parent to offspring.

Heredity

500

This was the scientist who first began studying heredity and genetics, also known as the "Father of Genetics". 

Gregor Mendel

500
If a child has a recessive trait, the parents have to be __________________.  

Carriers or have the trait themselves or homozygous recessive or heterozygous

500

Draw a Punnett Square with parents that are both heterozygous, using the letter B.  Brown is the dominant trait and blue the recessive.  Write down each genotype and the phenotype along with the percents of each.  

Daily Triple:  

            B                             b

B          BB                          Bb

b           Bb                          bb

BB-25%, Bb-50%, bb-25%

Brown 75%, Blue 25%

500
In a pedigree, a recessive trait is shown by ________________.  

Shading in part or all of the shape.