Genetics
Heredity
Punnet Squares
Misc
HE/HO
100
What is genetics?
The study of heredity.
100
What is heredity?
The passage of genetic instructions (traits) from parent to offspring.
100
Some genes can be hidden or covered up by another. These are considered to be-
Recessive
100

How are traits passed from parent to offspring?

Through genes 

100

Same Alleles

HO

200
Where are genes located?
In the chromosomes
200
Who first studied heredity and the passage of traits from one generation to the next?
Gregor Mendel
200
What is the punnet square used for?
To determine the outcome of genetic crossings.
200
Name two traits that could be inherited from a parent?
Examples: hair color, eye color, height, skin color, freckles, etc...
200

Different Alleles

HE

300

Bb

Genotype

300
What type of organism did Gregor Mendel use to first study heredity?
Pea Plants
300
A black chicken (BB) is crossed with a black chicken (BB). What percentage of offspring will be black?
100%
300
Why does a Punnet Square use capital and lowercase letters?
Capital = Dominant Trait Lower Case = Recessive Trait
300

hh

HO Recessive

400
Inherited traits that children get from their parents come from-
Genes
400
The physical trait observed in an offspring is known as it's -
Phenotype
400
Having dimples is dominant (D). Not having dimples is recessive. (d) Both parents are heterozygous for the dominant trait. What percentage of the children will NOT have dimples?
25%
400

B=long hair 

b= short hair 

What will this person have...

Bb

Long hair 

400

Bb

HE

500
What do we call the genetic make up of the individual, represented by a set of letters?
Genotype
500

What percentage of your genes come from each parent?

50%

500
Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other homozygours reccessive (e), what is the only possible genotype of the offspring?
Ee
500
Two dark brown rabbits have four offspring. Three of the offspring are dark and one is white. What does this tell you about the parents' genes for fur color?
Dark brown is dominant and white fur is recessive. Both parents are heterozygous.
500

Give an example of a homozygous dominant genotype

HH, BB, RR, SS,...

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