Show:
Genetics
Heredity
Reproduction
Punnet Squares
Misc
100
What is genetics?
The study of heredity.
100
What is heredity?
The passage of genetic instructions (traits) from parent to offspring.
100
Sexual reproduction produces offspring that are genetically _____________ to the parents.
Similar
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?
In the chromosomes
200
Who first studied heredity and the passage of traits from one generation to the next?
Gregor Mendel
200

Dominate= blue eyes

Recessive= brown eyes

parent A= Bb

parent B= bb

what percent will have Blues eyes  

50%

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

Dominate= Tall

Recessive= Short

parent A= tt

parent B= tt

what percent will be short

100%

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 offspring is known as it's -
Phenotype
400

For some traits, only one copy of a particular gene is needed to show a given trait. These genes are referred to as-

Dominant

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

what is the difference between genotype and phenotype 

genes= code

Phen= physical trait 

500
What do we call the genetic make up of the individual, represented by a set of letters?
Genotype
500
How many chromomsomes do humans have?
46 or 23 pair
500

How can parents with brown hair produce a child with blond?

parents carry gene for blond hair that was expressed in child. 

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

Give me an example of a homozygous dominant gene for eye color 

BB

AA

YY