T&R: Practice for Final Assessment

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence of an organism's genes, which can lead to changes in traits.

Front

How do genes influence traits?

Back

Genes provide the instructions for making proteins, which determine the physical characteristics (traits) of an organism.

Front

What is the difference between dominant and recessive genes?

Back

Dominant genes can mask the effects of recessive genes. If an organism has at least one dominant allele, the dominant trait will be expressed.

Front

What is inheritance?

Back

Inheritance is the process by which genetic information is passed from parents to their offspring.

Front

What is the role of proteins in determining traits?

Back

Proteins are responsible for the development and function of traits, as they perform various roles in the body, including structural, enzymatic, and regulatory functions.

Front

What does it mean for genes to be homozygous?

Back

Homozygous means that an organism has two identical alleles for a particular gene.

Front

What does it mean for genes to be heterozygous?

Back

Heterozygous means that an organism has two different alleles for a particular gene.

Front

How can mutations affect an organism?

Back

Mutations can lead to changes in traits, which may be beneficial, harmful, or neutral to the organism's survival.

Front

What is the significance of genetic variation?

Back

Genetic variation is important for the survival of a species, as it allows for adaptation to changing environments.

Front

What is the relationship between genes and proteins?

Back

Genes contain the instructions for making proteins, which carry out the functions necessary for life.