DNA Flashcards
(27 cards)
What is the double helix made of
two strands of nucleotides twisted in a helical shape
what is the extra ring of DNA found in bacteria
Plasmid
What is DNA made of
Subunits called nucleotides
A always bonds with…
T
what is the bond between sugars, phosphate, and bases
covalent bond
what is a twisted,spiraling shape
helix
In each nucleus there are __ thread like peices of DNA
46 thread like pieces of DNA
what are the 2 groups of nitrogen bases
Purine and Pyrimidine
The nitrogen bases that make up the steps of the DNA ladder are held together with ____ bonds, which are very ___
The nitrogen bases that make up the steps of the DNA ladder are held together with HYDROGEN bonds, which are very WEAK
what does DNA stand for
DeoxyriboNucleic Acid
What does the Pyrimidine base consist of
Thymine and Cytosine
the total 46 pieces is called a ____
genome
What are the thread like pieces of DNA called when coiled
Chromosomes
DNA is found in all living things in Eukaryotes its found in_____ Prokaryotes is found in the _______
Eukaryotes- DNA is in the nucleus Prokaryotes- Cytoplasm, a plasmid in an extra ring of DNA used 4 bioteachnology
What is always paired with thymine
adenine
What are the instructions for making proteins
DNA
What is DNA that has thickened and coiled
Chromosome
What time of macromolecule is DNA classified as?
Nucleic Acid
What is a threadlike piece of DNA
Chromatin
What is made of 3 parts
nucleotide
C always bonds with…
G
What does the Purine nitrogen base consist of
Adenine and Guanine
Whats a bond between nitrogen bases
hydrogen
What do the nitrogen bases make
the rungs(steps) of the DNA ladder
