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Genetics 1
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Genetics 3
Genetics 4
Genetics 5
100
How many dominant alleles are needed for a particular trait to show up?
1
100

What was the main conclusion of Mendel's pea plant study?

Dominant and recessive traits.

100

If a snake has 36 chromosomes in it's body cells, how many chromosomes did it inherit from the father snake?

18

100
This is the study of heredity
genetics
100

What is the name given to multiple traits located on the same chromosome that are usually inherited together by an offspring?

(ex. red hair & freckles)

Linked Traits

200

What is heterozygous?

One dominant allele one recessive allele

200
What is another word for purebred?
homozygous
200

This occurs when egg and sperm join to make offspring.

fertilization

200
This is an organism's genetic makeup.
Genotype
200
This is an organism's physical appearance.
Phenotype
300
What did Gregor Mendel cross-pollinate in his genetics experiments?
Plants / pea plants
300
An organism with 2 different alleles for a trait is called a ______.
Hybrid/heterozygous
300
This shows all of the possible outcomes of a genetic cross.
Punnett square
300
This type of organism has 2 different alleles for a trait
Heterozygous
300
What happens when a recessive allele is paired up with a dominant allele?
It is hidden / doesn't show up
400

What is a genotype?

The genetic makeup of an organism.

400

This type of organism has 2 dominant alleles for a trait.

Homozygous dominant

400

Do the following cross (A = freckles, a = no freckles):

Aa x Aa

What are the possible genotypes?

Phenotypes?

AA, Aa, aa

75% Freckles

25% No Freckles

400

What nucleotide pairs with Thymine in DNA?

Adenine

400
This type of organism has 2 recessive alleles for a trait
Homozygous recessive
500
This is the passing of physical characteristics from parent to offspring.
Heredity
500
This was the scientist who first began studying heredity and genetics.
Gregor Mendel
500

A section of DNA is called

a gene

500

If a strand of DNA has 30 Cytosine nucleotides, how many Guanine nucleotides must be present?

30

500

Do the following cross where B = blue eyes, b = brown eyes.


Bb x bb

Genotype?

Phenotype?

Bb, bb

50% Blue Eyes

50% Brown Eyes