Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Chapter 19 GENE

Genetics Chapter 19 Human Heredity

QuestionAnswer
Population A group of interbreeding organisms belonging to a single species
Gene Pool Set of genetic information carried by the members of a sexually reproducing population
Allelic Frequency Frequency of an allele is present in the population
Assumptions of Hardy Weinberg Large, random mating population free from all evolutionary forces, frequencies of alleles do not change over time, After one generation of random mating, the genotype frequencies will remain p2+2pq+q2
Evolutionary Forces Mutation, Migration, Selection, Drift, a few other minor
Classical model 1 allele is the best at a gene very little allelic variation
Balancing model Many alleles at each gene with many heterozygotes
Overdominance Where the heterozygotes are more fit than either homozygote, suggesting a high degree of variation in a population
Protein electrophoresis Could determine actual genotypes, did not prove balancing
Neutral- mutation hypothesis States that most variation is selectively neutral
Genetic Drift The random change in gene frequency due to change (Sewell Wright), only when population is really small
Effective Population size The average number of individuals in a population which contribute genes to succeeding generations.
Gene Flow: Three major effects A source of "new" genetic variation in populations, tends to increase the effective size of populations, increases the similarity of allele frequencies among populations
Created by: tstrange
Popular Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards