HWE, Speciation, and Population Genetics 11-19-15 SI Session

HWE, Speciation, and Population Genetics

11-19-15 SI Session

A gene pool is:

A. A group of individuals in the same place at the same time

B. All alleles at all gene loci in all individuals of a population

C. The amount of genes in a population D. The amount of varying genotypes of a given population

A gene pool is:

A. A group of individuals in the same place at the same time

B. All alleles at all gene loci in all individuals of a population

C. The amount of genes in a population D. The amount of varying genotypes of a given population

Meiosis and sexual reproduction change allele frequencies within populations.A. TrueB. False

Meiosis and sexual reproduction change allele frequencies within populations.A. TrueB. False

Which of the following are part of the five conditions that must be met in order for a population to experience HWE? A. No gene flow (migration)B. No mutationsC. Non-random matingD. A & B E. All of the above

Which of the following are part of the five conditions that must be met in order for a population to experience HWE? A. No gene flow (migration)B. No mutationsC. Non-random matingD. A & B E. All of the above

Which of the following are part of the five conditions that must be met in order for a population to experience HWE? A. No gene flow (migration)B. No mutationsC. Non-random matingD. A & B E. All of the above

1)No gene flow (migration)

2)No natural selection

3)No mutations

4)No genetic drift

5)Matings MUST be random

In most situations, do humans randomly mate? A. YesB. No

In most situations, do humans randomly mate? A. YesB. No

Human immune system attraction

http://www.nature.com/hdy/journal/v81/n2/abs/6884281a.html Men and women subconsciously prefer to mate with individuals

whose immune systems are drastically different than their own Detected in hormones/ smell WHY?

To create offspring that has an immune system more diverse that either of the parents individually higher likelihood of survival

The change in allele frequencies over a short time span (a couple generations) is referred to as which of the following? A. Natural selectionB. Random matingC. Sexual selectionD. Microevolution

The change in allele frequencies over a short time span (a couple generations) is referred to as which of the following? A. Natural selectionB. Random matingC. Sexual selectionD. Microevolution

Microevolution leads to…

Macroevolution: the production of new species/ groups of species

****evolution never happens in an individual, always on a population of a group within a species

Of the causes of evolution, which of the following is likely to better adapt a population to its environment? (Hint: which of the following processes describes the transfer of alleles from one generation to the next?)

A. Natural selectionB. MutationsC. Gene flowD. Migration

A. Natural selectionB. MutationsC. Gene flowD. Migration

Of the causes of evolution, which of the following is likely to better adapt a population to its environment? (Hint: which of the following processes describes the transfer of alleles from one generation to the next?)

Which of the following shows disruptive selection?

A.

B.

C.

Which of the following shows disruptive selection?

A.

B.

C.

Which of the following shows stabilizing selection?

A.

B.

C.

Which of the following shows stabilizing selection?

A.

B.

C.

Which of the following shows directional selection?

A.

B.

C.

Which of the following shows directional selection?

A.

B.

C.