Chromosomes
What is a gene?
A section of DNA
How many cells are in your body?
Trillions of cells
What is the building block monomer of DNA?
A Nucleotide
A pairs with what?
T
What is G1?
1st growth phase
What is a chromosome?
A condensed strand of DNA
Where does DNA replication begin?
The origin of replication
Hydrogen bonds keep what together?
The two strands of DNA together
G pairs with what?
C
what is G2?
2nd growth phase
How many chromosomes does the human body have and how many sets does it have?
46 chromosomes and two pairs of 23
How many base pairs are in your genome?
About 3 billion base pairs
How many hydrogen bonds between C and G
3 hydrogen bonds
What does this pair with AGGCCTACGA
TCCGGATGCA
what is phase S?
DNA replication
What is Chromatin?
Loose DNA found in interphase
DNA polymerase joins what to create the new strands of DNA?
Nucleotides
how many hydrogen bonds between A and T?
2 hydrogen bonds
Two copies of DNA attach to each other through structure called what?
Centromere
What is Mitosis phase?
Dividing DNA that was replicated in S phase
Approximately how many genes does a human body have?
About 30,0000
DNA helicase ezyme breaks what?
hydrogen bonds between nitrogenous bases.
who had been taking x-ray crystallography images of the structure of DNA?
Rosalind Franklin
When DNA has been replicated and then condensed what is it called
Sister Chromatids
What is Cytokinesis phase?
Separating out organelles and cytoplasm into two new cells