Show:
Genetics
Heredity
Reproduction
Punnet Squares
Misc
100

What is an allele that is always expressed, even when a different allele is also present?

What is dominant?

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
Asexual reproduction produces offspring that are genetically ____________ to the parent.
Identical
200

What is the punnet square used for?

To determine the probability of outcomes 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
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
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
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

The sorting or mixing of chromosomes during sexual reproduction, determines -

Which traits are passed on to the offspring

500

Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other homozygous 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.