GENETICS

Genetics 1

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?

Plants / pea plants

400

This is a number that describes how likely it is that an event will occur.

Probability

500

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

Heredity

Genetics 2

100

What is the shape of DNA?

Double Helix

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

Genetics 3

100

Factors that control traits are called

genes

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

Different forms of a gene.

Alleles

500

The female is heterozygous for her brown eyes and her husband has a homozygous brown genotype. What is the probability that their offspring will have brown eyes?

100%

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

What genotype does this combination show?

HH

Homozygous Dominant

500

The allele for a cleft chin (H) is dominant. A woman with the genotype hh has offspring with a man with the genotype Hh. If the couple has six children, how many children would you logically expect to have a cleft chin?  

3

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

If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?  

100%