Organization
Heredity
This vs. That
Punnet Squares
Misc
100
Which cell organelle is home to DNA?
The nucleus
100
What is heredity?
The passage of genetic instructions (traits) from parent to offspring.
100
Inherited vs Acquired
Inherited - Traits passed down genetically from your parents Acquired - Learned or obtained during life
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 during reproduction
200
Where are genes located?
DNA
200
Who first studied heredity and the passage of traits from one generation to the next?
Gregor Mendel
200

Dominant vs. Recessive

Dominant - Represented by a capital letter, will be expressed in a hybrid Recessive- Represented by a lower case, needs two copies to be expressed

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...
300
What are the threadlike structures of DNA that carry genes called?
Chromosomes
300
What type of organism did Gregor Mendel use to first study heredity?
Pea Plants
300

Hybrid vs. Purebred

Hybrid- A copy of a dominant and recessive allele (Aa) Purebred- Two copies of the same allele (AA or aa)

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
400
Inherited traits that children get from their parents come from-
Genes
400

The physical trait observed in an organism

What is phenotype?

400
Genotype vs. Phenotype
Genotype- The genetic makeup of an individual Phenotype- The physical trait expressed in an individual
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
How many parents are involved in asexual reproduction?
One
500

The name we give the entire genetic make up of an individual.

What is genotype?

500

46

How many chromosomes do humans have?

500

Gene vs. Allele

Gene- What is a trait (Eye color) v. What is an allele- Version of trait (Blue or Brown)?

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.
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