Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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 5.1 Vocab

Biology 5.1 Terms

Trait A particular version of a characteristic that is inherited, such as hair colour or blood type.
True-breeding organism An organism that produces offspring that are genetically identical for one or more traits when self-pollinated or when crossed with another true-breeding organism for the same traits.
Hybrid The offspring of two different true –breeding plants.
Cross The successful mating of two organisms from distinct genetic lines.
P generation The parent plants used in a cross.
F1 generation The offspring of a P-generation cross.
Monohybrid cross The offspring of two different true-breeding plants that differ in only one characteristic.
F2 generation The offspring of a F1-generation cross.
Law of segregation Scientific law stating that (1) organisms inherit two copies of genes, one from each parent, and (2) organisms donate only one copy of each gene to their gametes because the genes separate during gamete formation.
Allele A specific form of gene.
Homozygous An individual that carries two of the same alleles for a given characteristic.
Heterozygous An individual that carries two different alleles for a given characteristic.
Genotype The genetic makeup of an individual.
Phenotype An individual’s outward appearance with respect to a specific characteristic.
Dominant allele The allele that, if present, is always expressed.
Recessive allele That allele that is expressed only if it is not in the presence of the dominant allele, that is, if the individual is homozygous for the recessive allele.
Punnett square A diagram that summarizes every possible combination of each allele from each parent; a tool for determining the probability of a single offspring having a particular genotype.
Probability The likelihood that an outcome will occur if it is a matter of chance.
Test cross A cross used to determine the genotype of an individual expressing a dominant trait.
Created by: Empoi68



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:
restart all cards