DNA Flashcards
(52 cards)
What is the DNA shape called
Double helix
Waht does dna do
Makes us who we are
What are the two strands of dna done
Twisted round like a spiral staircase
Waht are the two sides joined together by
Bases
What are the four types of bases
A T C G
What two bases line together
A and T
C and G
What are scientists now able to do
Sequence dna in most living things
What does sequence mean
Work out the order of the bases which are a t c g
Name 3 ways dna fingerprinting can be used
To produce designer babies
To create medicines
To create new foods
What does the scrotum do
Holds testes
What do the testes do
Make sperm
What does the sperm tube do
Carries sperm to penis
What does the penis do
Carries sperm out of the body
Where does fertilisation take place
In the oviduct (fallopian tube)
What do the ovarys do
Make eggs
What does the oviduct do
Carries egg to uterus
What does the vagina do
Recieves sperm
Where does the baby grow
Uterus
What is the black dot on cells
Nucleus
What does the tail do on the sperm
Help the sperm swim to the egg
What does the nucleus contain
All the genetic information
Waht is the head of the sperm
Strong to break into the egg
Waht is the outer part of the egg for
Food store
What are four things the foetus needs when relying on its mother
Protection
Oxygen
Nutrients
Removal of waster substances
