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

LE Review Ch. 3-4

NYS LE curriculum

QuestionAnswer
Asexual reproduction when a cell splits, creating two identical clones
Clones 2 identical organisms, with the same exact DNA
Biotechnology using technology to build/alter living tissue
Chromosome condensed (squished up) DNA, found in the nucleus
DNA deoxyribonucleic acid. Sequence of letters, A, T, C, G that pass on traits
Genes part of the DNA that “codes” for a trait
Genetic engineering altering genes, usually to treat or cure a disease ex)breast cancer gene. Bacteria making insulin
Genetic recombination during meiosis, some genes get switched between chromosomes (crossing over)
Heredity passing traits (genes) from parent to offspring
Mutation change in DNA that alters a gene
Replicate copy chromosomes before cell division
Selective breeding when organisms choose their mates
Sexual reproduction 2 parents each provide half the number of chromosomes. Increases variation in the species
Traits characteristic inherit from your parents
Differentiation when identical cells change to become specialized.
Egg female sex cell (haploid-half # chromosomes)
Embryo developing fertilized egg, cells are all the same
Fertilization act of combining the egg and sperm cell
Gamete egg cell and sperm cell
Fetus after 2 months of development, organs are formed
Meiosis cell division resulting in half number of chromosomes (haploid)
Mitosis normal cell division. Creates clones.
Ovaries in the female, where eggs are released
Placenta connection between mother’s uterus and baby. Nutrients and oxygen pass through.
Sex cell male and female cells that will combine during fertilization
Species organisms that can reproduce and make offspring that are fertile
Sperm male sex cell (haploid -half # chromosomes)
Uterus part of female reproductive system where baby develops.
Zygote fertilized egg, one cell
Estrogen female hormone responsible for sexual dev’t and menstrual cycles.
Testosterone male hormone responsible for sexual dev’t and formation of sperm
Created by: aweimer
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