GENETICS

Basics

100

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

1

200

What is another word for heterozygous?

hybrid

300

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

pea plants

400

A word that means the numerical likelihood of something happening. 

Probability

500

This is the passing of traits from parent to offspring.

Heredity

Basics Again

100

Short sections of DNA that provide the code to build proteins

genes

200

What is another word for purebred?

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 heredity and genetics.

Gregor Mendel

Some More Basics

100

Genotypes consists of how many alleles? 

2

200

This occurs when egg and sperm join to make offspring.

fertilization

300

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

Punnett square

400

A change in an organism's DNA is called what? 

mutation

500

Different forms of a gene.

alleles

Genetics 4

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

Genetics 5

100

TT and tt are both examples of a ___________ trait.

purebred/homozygous

200

This is an organism's physical appearance.

Phenotype

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