Save
Upgrade to remove ads
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

Finals- Genetics

TermDefinition
Gene pool alleles present in a population
Directional selection Phenotypes at one end of the spectrum become favored
Stabilizing selection Intermediates are favored
Disruptive selection Both phenotype extremes are favored
Gel electrophoresis Separated DNA chunks by size
Founder effect Small group splits off from big group
Bottleneck An event causes a dramatic decrease in population size
Continuous traits phenotypes can be anything in a range
Polygenic Varying phenotypes from the input of multiple genes
meristic the phenotype is countable
threshold polygenic multifactorial classified as a disease.
complex results of both gene action and environmental influence
Additive alleles Add color size typically dominant
Nonadditive alleles don't typically add anything
broad sense heritability the proportion of total phenotypic variance (observable differences) in a population that is due to total genetic variance, encompassing additive, dominance, and epistatic effects, versus environmental factors
narrow sense heritability a key concept in genetics measuring the proportion of a trait's total variation (phenotypic variance) that's due only to the additive effects of genes
identical twins phenotypic variance: environment variance only
fraternal twins phenotypic variance: environment +1/2 genotype
microevolution small scale changes within a species
Macroevolution large scale changes above the species level often long term spanning millions of years.
 

 



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