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

BIOL1020 module 6

BIOL1020

QuestionAnswer
Genetic drift unpredictable fluctuations in allele frequencies from one generation to the next because of a population's finite size. by chance
Gene flow genetic additions to or subtractions from a population resulting from the movement of fertile individuals or gametes
Mutation a change in the dna of a gene, ultimately creating genetic diversity
Natural selection Differential success in the reproduction of different phenotypes resulting from the interaction of organisms with their environment. Evolution occurs when natural selection causes changes in relative frequencies of alleles in the gene pool.
Directional selection a pattern of natural selection in which individuals with one particular extreme phenotype have higher fitness than individuals with an average phenotype or with the other extreme of the phenotype. a change in mean
Disruptive selection A pattern of natural selection in which induviduals with an extreme phenotype (at either end of the range) have higher fitness than individuals with average phenotypes. favours extreme phenotypes
Stabilizing selection a pattern of natural selection in which individuals with an average phenotype have higher fitness than those with an extreme phenotype. favours intermediate phenotypes
what are the 3 sources of genetic variation random mutations, sexual recombination and diploidy, and population level processes
What does the Hardy-weinberg equilibrium theory state? That random mating and allelic frequencies remain constant
What are gene pools characterized by? Allele frequency
define evolution a change in the frequency of alleles over space and time in the gene pool of a reproducing population
How can allele frequency change? New mutations, non-random mating (inbreeding), gene flow (transfer of alleles from 1 gene pool to another), random chance (genetic drift) and natural selection
Polymorphism in coding sequence of a gene changes the _______ of the resultant protein Nature
Polymorphism in regulatory element of a gene changes the _______ of the resultant protein amount
Created by: cmw001001
Popular Biology 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