Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
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

Genetics

Genetics middle school

TermDefinition
genetics the study of heredity
heredity the passing of traits from parents to offspring
Gregor Mendel Father of Genetics, a monk who studied heredity of pea plants and how traits are passed from one generation to another
traits physical characteristics of an organism
genes factors that control traits-found on chromosomes, inherited in pairs from parents
alleles different forms of a gene Ex: brown eyes/blue eyes
dominant traits stronger traits represented by a capitol letter- always show up when the the allele is present in a gene pair
recessive traits weaker traits represented by a lower case letter-is masked or hidden when paired with a dominant allele in a gene pair
homozygous/purebred an organism that has genes that alike for a particular trait ex: 2 genes for tall (TT) or 2 genes for short (tt)
heterozygous/hybrid an organism that has 2 different genes for a particular trait ex: Tt-one gene for tall (T) and one for short (t)
Punnett Square chart used to show probability of possible gene combinations in a cross between 2 organisms
phenotype physical characteristics of an organism ex: brown eyes, purple flowers
genotype the gene makeup or allele combination ex: BB homozygous dominant Bb hybrid BB homozygous recessive
meiosis cell process that produces sex cells (sperm and egg) sex cells have half the number of chromosomes as the original cell
chromosomes rod shaped structures found in the nucleus/contain genes
sex chromosomes specialized chromosomes that determine the gender of offspring EX: XX=female XY=male
gametes sex cells (sperm and egg)
zygote fertilized egg cell
sexual reproduction reproduction that requires 2 parents, offspring gets half of their genes from each parent, offspring are genetically different, creates greatest genetic diversity
asexual reproduction reproduction that requires 1 parent, offspring are genetically identical to the parent, no genetic diversity Ex: binary fission, budding, cuttings from plants
mitosis cell division that forms 2 new identical cells with the same number of chromosomes
Created by: Littlegrif
 

 



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