Forces of Evolution

Multiple Choice

What do we call ALL of the genetic information found in a population?

Cómo llamamos a toda la información genética que se encuentra en una población.

• Population

• Genetic Drift

• Evolution

• Gene pool

Multiple Choice

Mutations are a change in what?

¿Las mutaciones son un cambio en qué?

• DNA

• Proteins

• RNA

• tRNA

Multiple Choice

This is the process that ultimately creates new variations and changes in DNA; leads to the creation of new alleles

Este es el proceso que finalmente crea nuevas variaciones y cambios en el ADN; conduce a la creación de nuevos alelos

• Microevolution

• Mutation

• Gene Flor

• Genetic Drift

Multiple Choice

What is gene flow?

¿Qué es el flujo de genes?

• A change in the gene pool due to chance

• A reduction in populations caused by natural disasters, disease, hunting.

• The addition or removal of genes due to individuals entering or leaving the population

• A change in gene frequencies when a new population arises from a few individuals.

Multiple Choice

Genetic drift is driven by chance, not natural selection

La deriva genética es impulsada por el azar, no por la selección natural

• True

• False

Multiple Choice

If a trait HELPS an organism survive, what may happen to it?

Si una caracteristica AYUDA a un organismo a sobrevivir, que puede sucederle?

• It dies, cannot reproduce and DNA cannot be passed on.

• It changes its traits to adapt and survive

• It survives, reproduces and passes on its DNA

Multiple Choice

The _________________ _________________ occurs when there is a reduction in population due to natural disasters, over hunting or disease.

El/La _______________ ____________ ocurre cuando la poblacion reduce debido a desastres naturales, caza o enfermedad.

• Founder effect

• Gene Flow

• Bottleneck effect

• Genetic drift

Multiple Choice

What does the image represent?

• Genetic Drift

• Mutation

• Adaptation

• Gene Flow

Multiple Choice

A virus killed most of the seals in the North Sea (e.g. the population dropped from 8000 to 800).  In an effort to help preserve the species, scientists caught 20 of the remaining seals and used them to start a new population in the northwest Pacific Ocean.  Which of the following statements would accurately describe the new   population?  

• The new seal population is less genetically diverse than the original population

• There is equal genetic variety compared to the original population

• The new seal population is more genetically diverse than the original