GENETICS

Genetics

100

How many dominant alleles are needed for a particular trait to show up?

1

200

What is another word for heterozygous?

hybrid or different alleles

300

What did Gregor Mendel cross-pollinate in his genetics experiments?

Plants / pea plants

400

Define Artifical selection

Man's involvement in nature, or the taking of favorable traits from other organisms and breeding them with another organism with a favorable trait

500

This is the passing of physical characteristics from parent to offspring.

Heredity

Genes

100

What is natural selection?

Favorable traits are proven to be benefits to the survival of an organism

200

What is another word for purebred or the same?

homozygous

300

An organism with 2 different alleles for a trait is called a ______.

Hybrid/heterozygous

400

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

Homozygous dominant

500

This was the scientist who first began studying Natural selection

Charles Darwin

Inhertiance

100

What is does term phenotype mean?

Physical observable traits in an individual

200

This occurs when egg and sperm join to make offspring.

fertilization

300

This shows all of the possible outcomes of a genetic cross.

Punnett square

400

If a white flower and red flower are crossed, what color would the offspring be?

Pink...due to blending of the traits because of incomplete dominance in flower colors.

500

Different forms of a gene.

alleles

Alleles

100

This is the study of heredity

genetics

200

This is an organism's genetic makeup.

Genotype

300

This type of organism has 2 different alleles for a trait

Heterozygous

400

This occurs when 2 traits are neither dominant nor recessive, both show up.

co-dominant / codominance

500

Neither trait is dominant over the other and the two blend together.

Incomplete Dominance

Alleles 2

100

TT and tt are both examples of a ___________ trait.

purebred/homozygous

200

In order for a recessive trait to show up in the organisms phenotype............this must happen?

Both parents must have that recessive trait

300

What happens when a recessive allele is paired up with a dominant allele?

It is hidden / doesn't show up

400

This type of organism has 2 recessive alleles for a trait

Homozygous recessive

500

Factors that control traits are called.....

Genes