genetics wrap up

Dominant and Recessive Traits

By SCOTT RAINEY

Multiple Choice

Which statement is true about dominant and recessive genes?

• Dominant genes mask recessive genes.

• Recessive genes mask dominant genes.

• They are equal.

Multiple Choice

In alleles, capital letters show:

• Recessive traits.

• Dominant traits.

Multiple Choice

Homozygous means:

• Different alleles. Ex: Tt

• Same alleles. Ex: tt

Multiple Choice

Heterozygous means:

• Same alleles. Ex: TT

• Different alleles. Ex: Tt

Multiple Choice

What is true about genotypes?

• Genotypes are the traits that show up.

• Genotypes are the gene combinations.

Multiple Choice

Phenotypes refer to:

• Gene combinations.

• Traits that show up.

Multiple Choice

The blending of two traits is known as ---

• incomplete dominance

• codominance

Multiple Choice

A condition in which both alleles for a gene are expressed so that both traits are visible is known as ---

• Codominance

• Incomplete dominance

Multiple Choice

What type of inheritance pattern is shown here?

• Codominance

• Incomplete dominance

Multiple Choice

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

• Incomplete dominance

• Codominance

Multiple Choice

this image is an example of

• codominance
• dominance
• incomplete dominance

Multiple Choice

Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring will be calico (black and tan spotted)?

• 25

• 50

• 75

• 100

Multiple Choice

A-Brown hair; a-blond hair

Which describes is the phenotypes of the offspring?

• 50 % Brown Hair and 50% Blond Hair

• 25 % Brown Hair and 75% Blond Hair

• 75 % Brown Hair and 25% Blond Hair

• 0% Brown Hair and 100% Blond Hair

Multiple Choice

In a certain species of plant, the color purple (P) is dominant to the color white (p).

According to the Punnett Square, what is the probability of an offspring being purple?

• 25%

• 0%

• 100%

• 50%

Multiple Choice

Putting the gene for bioluminescence into a fish is an example of...

• Genetic Engineering
• Selective Breeding
• Artificial Selection
• Gene Mutation

Multiple Choice

What process is shown in the picture?

• Gene therapy
• Cloning
• DNA Fingerprinting
• Gene Splicing

Multiple Choice

What has been an ADVANTAGE of producing genetically modified organisms like certain crops?

• adding more nutrients into our food

• producing clones

• studying the human genome

• using more pesticides