nucliec acids Flashcards
(24 cards)
store, transmit, help express heredity info
nucleic acid
what is called to the amino acid sequence of polypeptide that is programmed by a unit of inheritance
gene
genes are made of
dna
made of monomers called nucleotides
nucleic acid
two types of nucliec acid
DNA, RNA
provides direction for its own replication
dna
directs synthesis of messenger RNA (mRNA), through mRNA it controls protein synthesis
DNA
where does protein synthesis occur
ribosome
nucleic acids are polymers called
polynucleotides
polynucleotides is made up of monomers called
nucleotide
nucleotide consists what
pentose sugar, nitrogenous base, phosphate groups
portion of nucleotide without the phosphate group
nucleoside
two families of nitrogenous bases
purines, pyrimidines
linked together to build polynucleotide
nucleotide polymers
adjacent nucleotides are joined by?
covalent bonds (phosphodiester bond)
usually exist as single polypeptide chains
RNA molecules
_____ have two polynucleotides spiraling around imaginary axis forming a ____
DNA, double helix
two back bones run in opposite 5 3 direction arrangement is called
anti-parallel
nitrogenous bases in DNA pair up and form ____
hydrogen bonds
in DNA Adenine is paired with
Thymine
Guanine is paired with
cytosine
In RNA Adenine is paired with
Uracil
are passed from parents to offspring
linear sequences of nucleotides in DNA molecules
can be used to assess evolutionary kinship
molecular biology
