Understanding Evolution and Traits

Front

What is the process that increases the number of individuals in a species?

Back

Reproduction is the process that increases the number of individuals in a species.

Front

What does the term 'expressed trait' refer to in genetics?

Back

An expressed trait refers to the physical appearance or characteristic resulting from a gene.

Front

In a population of butterflies, if blue color is a recessive trait and there are 150 yellow and 50 blue butterflies, what is the frequency of the recessive allele (q)?

Back

The frequency of the recessive allele (q) is 0.5.

Front

What is an example of an advantageous heritable trait?

Back

Camouflage coloring in a prey animal is an example of an advantageous heritable trait.

Front

Which statistical method can be used to determine if the difference in height between tall and short plants is significant?

Back

A t-test can be used to determine if the difference in height is significant.

Front

Define natural selection.

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a mutation in genetics?

Back

A mutation is a change in the DNA sequence of an organism's genome.

Front

Explain the Hardy-Weinberg principle.

Back

The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences.

Front

What is a recessive trait?

Back

A recessive trait is a trait that is expressed only when two copies of the recessive allele are present.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable characteristics.