How Populations Evolve.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What is a gene pool? | A gene pool is a collection of all genes in a population.
🗑
|
||||
| What are two main sources of genetic variation in a population’s gene pool? |
🗑
|
||||
| There are only 1,000 people in this population. What evolutionary mechanism might cause a loss of genetic diversity in small populations like this? |
🗑
|
||||
| What is gene flow, and how does it relate to what is happening to this population? |
🗑
|
||||
| A chance event like a drought can have a huge effect on small populations like this, especially when some of the population leave to colonize a new area. Is this an example of the bottleneck effect or the founder effect? |
🗑
|
||||
| What will happen to the frequency of the sickle cell allele in the population: will it increase, decrease, or stay the same? |
🗑
|
||||
| Using your answer from the previous question, identify what type of natural selection this population is undergoing: directional selection, stabilizing selection, or disruptive selection. |
🗑
|
||||
| What are the five factors that cause populations to evolve? Describe each in your own words. |
🗑
|
||||
| Give an example of each of the five factors that cause populations to evolve. |
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
teruodaka
Popular Biology sets