Show:
Genetics
Heredity
Reproduction
Punnett Squares
Miscellaneous
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.

unique or different

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?

Sections of DNA location on chromosomes 

200
Who first studied heredity and the passage of traits from one generation to the next?
Gregor Mendel
200
Asexual reproduction produces offspring that are genetically ____________ to the parent.
Identical
200

What is the punnett square used for?

To predict the possible outcome of traits that are passed down from parents to offspring

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
If you are studying a population of genetically identical individuals, you can conclude that these individuals reproduce how?
Asexually
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

The alternative form of genes that occurs in pairs is termed what?

alleles

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
How many parents are involved in asexual reproduction?
One
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

What is the expected result of a Tt × Tt genetic cross?  T=tall t=short

50% chance of the offspring being heterozygous tall, 25% chance of the offspring being homozygous tall, and 25% chance of the offspring being short

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.