Unit 9 Review

Front

What type of cell can transmit changed DNA to offspring after exposure to radiation?

Back

Egg Cell

Front

What is the genotype for a child with a recessive trait in a pedigree?

Back

aa

Front

What supports the claim that genetically engineered peaches are beneficial?

Back

The genetically modified peach is larger than the naturally occurring peach.

Front

What are the variations of genes for a single trait called?

Back

Alleles

Front

In a dihybrid cross, what ratio of offspring will be round and green if the answer is 3/16?

Back

3/16

Front

What is the definition of a recessive trait?

Back

A trait that is expressed only when two recessive alleles are present.

Front

What is the purpose of a pedigree chart?

Back

To track the inheritance of traits across generations.

Front

What are gametes?

Back

Reproductive cells (sperm and egg) that carry genetic information.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the observable traits.

Front

What is a dihybrid cross?

Back

A genetic cross that examines the inheritance of two different traits.