Chapter 12/13 Flashcards
What did Rosalind Franklin contribute to the effort to identify the structure of DNA?
X-ray diffraction photos of the DNA molecule
Which is not a nucleotide of DNA?
Uracil
What direction do DNA strands run?
Antiparallel
A___________ is a 3 letter word in mRNA.
Codon
Because of Chargaff’s rule in DNA, the percentage of:
Thymine in DNA is about equal to the % of Adenine
______________________________- is the perfect fit between A & T, and G & C.
Base pairing
Which is not a component of a nucleotide?
Hydrogen Base
Which type of RNA brings the information in the genetic code from the nucleus to other parts of the cell?
mRNA
The enzyme responsible for joining new strands of DNA together is:
DNA polymerase
___________________________ - tips of an eukaryotic chromosomes, that help to prevent gene loss.
Telomeres
Which is the correct sequence of the transfer of information in most organisms
DNA to RNA to Protein
DNA is in the shape of a _________________.
Double helix
What sugar is found in the RNA nucleotide?
Ribose
How many strands are in DNA?
2
What is the abbreviation for deoxyribonucleic acid?
DNA
What nucleotide pairs with Guanine (G)(the name and the letter)?
Cytosine
What is the function of RNA?
To decode DNA
what are 3 main differences in DNA and RNA? Be sure to give each difference for each compound
1) DNA has 1 strand, RNA has 2 strands. 2) RNA contain Uracil and DNA contain Thymine. 3) RNA has Ribose and DNA has deoxyribose.
What are the 4 nucleotides of RNA(names and letters) ?
Adinine, Guanmine, Uracil, Cytosine
