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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
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

Genetic Laws/Defects

Honors Biology

Trisomy 21 (chromosomes and syndrome) 3 #21 chromosomes & = Down Syndrome
XYY Syndrome (chromosome) Extra #23 Y chromosome
Trisomy 21 symptoms Facial characteristics of Down syndrome & difficulty processing info in the brain
XYY Syndrome symptoms Taller/Hairier/Agressive- More Tesostrone
Trisomy 16 (chromosome) Extra X #16 chromosome
Trisomy 16 symptoms Miscarriage in first trimester pregnancy
Monosomy X (chromosome & syndrome) Missing #23 X chromosome &= Turner Syndrome (only occurs in girls)
Klinefelter Syndrome (chromosome and side effects/symptoms) Man has extra #23 X chromosome- can't have kids/ makes more estrogen
Law is Segregation Offspring inherits 2 copies of each gen, 1 from each parent -2 allels for a trait segregate (separate) hen gametes are formed.
Law of Independent Assortment Allels for different genes separate independently of each other during gametes formation (meiosis)
Heredity Passing of traits from parents to offspring
Genetics Science of hereidity
Gregor Mendel Austrain monk who laid important ground work for biological inherence (pea plants)
Cross pollination The combining of gametes from 2 separate plants
Self pollinating Occurs in nature with out human interference- cross pollination can be done by humans
The Principal of Dominance Dominant Gene trumpets recessive gene
Tetrad Homologous chromosomes connect together
Crossing over When a tetrad is formed they share info(crossing over)
Nondijunction Homologous chromosomes ( or chromotids) fail to separate
Autosomal chromosomes Stomatic
Karyotype Picture of someone's chromosomes
Created by: deleted user