Genetics
Heredity
Defining words
Punnet Squares
Misc
100

Where do an organisms genes come from?

Both the mother and father

100

What is heredity?

The passage of genetic instructions (traits) from parent to offspring.

100

Two different alleles - Hh

What is Heterozygous?


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

What is the term for a form of gene?

allele

200

Who first studied heredity and the passage of traits from one generation to the next?

Gregor Mendel

200

Two of the same alleles - hh


What is Homozygous?

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

upper case letter - HH

What is dominant?

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

the allele combination inherited, HH, Hh, hh

What is a Genotype?

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 organism has blue eyes or brown eyes

What is a Phenotype?

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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