DNA Flashcards
What instructions does the NUCLUES cell contain? (4)
What it will do, how it will function, when it will reproduce/grow, and when it will die
What carries the master set of instructions for cell function
The DNA
what are the sides of DNA made up of?
Sugar and Phosphates
DNA are made up of which bases? (4)
Adenine Cystosine Guanine Thymine
What is Adenine and Guanine structures known as?
Purines
Cystosine and thymine are know as?
PYRAMIDINES
a singular sugar phosphate base unit is called ?
Nucleotide
What pairs with Adenine?
Thymine
What pairs with Cytosine?
Guanine
Name 4 DNA functions
instructions for all cell functions, determines the hereditary traits, evolves, self replication
The arrangement of bases in DNA directs all cell activity, what do the bases carry then?
carries message, a CODE
what is chromatin made up of?
DNA and proteins / histones
when cells reproduce, the entire chromatin coils up and makes an X shaped structure, called what?
chromosome
how many chromosome pairs does a human have?
46 (23 pairs)
How many genes does a chromosome carry?
1000