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
share
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

Adv. Bio Ch 23

TermDefinition
Genetic Variation Differences among individuals in the composition of their genes or other DNA segments.
Mutation A change in the nucleotide sequence of an organism’s DNA or in the DNA or RNA of a virus.
Gene Pool The aggregate of all copies of every type of allele at all loci in every individual in a population.
Population A group of individuals of the same species that live in the same area and interbreed, producing fertile offspring.
Hardy-Weinberg Equilibrium The state of a population in which frequencies of alleles and genotypes remain constant from generation to generation, provided that only Mendelian segregation and recombination of alleles are at work.
Adaptive Evolution Evolution that results in a better match between organisms and their environment.
Genetic Drift A process in which chance events cause unpredictable fluctuations in allele frequencies from one generation to the next.
Gene Flow The transfer of alleles from one population to another, resulting from the movement of fertile individuals or their gametes.
Directional Selection Natural selection in which individuals at one end of the phenotypic range survive or reproduce more successfully than do other individuals.
Disruptive Selection Natural selection in which individuals on both extremes of a phenotypic range survive or reproduce more successfully than do individuals with intermediate phenotypes.
Stabilizing Selection Natural selection in which intermediate phenotypes survive or reproduce more successfully than do extreme phenotypes.
Sexual Selection A form of natural selection in which individuals with certain inherited characteristics are more likely than other individuals to obtain mates.
Created by: Mr.Devine
Popular Biology sets
Cell Cycle
Cell Organelles
Genetics
Plant Systems
Cell Transport
Vocabulary for Unit 3- Requirements of Life
Animal Systems
Cards from the Human Body Systems (Unit 4)
Vocabulary for the first part of Unit 2 (Cells)
Changes in DNA
Biomolecules
Viruses

 

 



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