Genetics Lessons 1 - 4 Review

Front

Tendency to becoming bald as you age.

Back

Inherited trait that can be passed down from parents to offspring.

Front

What is the relationship between DNA and chromosomes?

Back

Chromosomes are made of DNA.

Front

What does a filled in square represent in a pedigree chart?

Back

Affected Male.

Front

What happens to the blood cells of patients with Sickle Cell Anemia?

Back

Their blood cells are sickle shaped, which makes clumps.

Front

What is an acquired trait?

Back

A trait that is not inherited but developed through environmental influences, such as eye makeup.

Front

What is a gene?

Back

A segment of DNA that contains the instructions for building a specific protein.

Front

What is the role of chromosomes in genetics?

Back

They carry genetic information in the form of genes.

Front

What is a pedigree chart?

Back

A diagram that shows the occurrence of a genetic trait in several generations of a family.

Front

What is the difference between dominant and recessive traits?

Back

Dominant traits are expressed when at least one dominant allele is present; recessive traits are expressed only when two recessive alleles are present.

Front

What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.