sdsu bio 100 exam 3 (kacsinta) UPDATED
ACTUAL Exam Questions and CORRECT
Answers
DNA - CORRECT ANSWER - one of the two types of nucleic acids, molecules that store
information, is a polymer (structure)
polymer (structure) - CORRECT ANSWER - a large molecule made by repeating a
smaller unit (nucleotides)
within the cell, DNA polymers... - CORRECT ANSWER - usually exists as one or more
very long fibers (chromosomes)
gene - CORRECT ANSWER - unit of heredity, a stretch of DNA that encodes information
needed to produce a specific molecule
Three parts of a nucleotide - CORRECT ANSWER - - a central five-carbon
SUGAR(called deoxyribose in DNA)
- a negatively charged PHOSPHATE
- a BASE made from one or two rings of nitrogen and carbon
One molecule of DNA contains two ... - CORRECT ANSWER - polynucleotides. each
polynucleotide is a long strand of individual nucleotides
Each nucleotide contains one of four bases - CORRECT ANSWER - - Adenine, guanine,
cytosine, thymine, A-T, G-C
Nucleic acids are ... - CORRECT ANSWER - information storage molecules that contain
directions for the production of other molecules
, Process of Transcription - CORRECT ANSWER - info in a DNA gene is converted to an
RNA molecule in the nucleus
Process of translation - CORRECT ANSWER - RNA leaves nucleus, exiting through an
opening in the nuclear envelope called a nuclear pore. Once in the cytoplasm, the RNA molecule
makes its way to a ribosome, where the message it contains is converted to protein
Messenger RNA (mRNA) - CORRECT ANSWER - RNA molecule that carries copies of
instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
A molecule of mRNA contains... - CORRECT ANSWER - successive codon, sequences of
three nucleotides, each of which specific one amino acid
Polypeptide - CORRECT ANSWER - chain of amino acids
ribosomes - CORRECT ANSWER - the cellular structures that perform the translation of
mRNA polynucleotides into amino acid polypeptides. They are made from protein combined
with a special type of RNA called ribosomal RNA (a site where proteins are made)
Anticodon - CORRECT ANSWER - a sequence of three nucleotides forming a unit of
genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger
RNA.
triple code - CORRECT ANSWER - correspondence between an mRNA codon and its
amino acid
start codon - CORRECT ANSWER - AUG
stop codon - CORRECT ANSWER - UAA, UAG, UGA
mutation - CORRECT ANSWER - any change to the genetic information of cell or virus
ACTUAL Exam Questions and CORRECT
Answers
DNA - CORRECT ANSWER - one of the two types of nucleic acids, molecules that store
information, is a polymer (structure)
polymer (structure) - CORRECT ANSWER - a large molecule made by repeating a
smaller unit (nucleotides)
within the cell, DNA polymers... - CORRECT ANSWER - usually exists as one or more
very long fibers (chromosomes)
gene - CORRECT ANSWER - unit of heredity, a stretch of DNA that encodes information
needed to produce a specific molecule
Three parts of a nucleotide - CORRECT ANSWER - - a central five-carbon
SUGAR(called deoxyribose in DNA)
- a negatively charged PHOSPHATE
- a BASE made from one or two rings of nitrogen and carbon
One molecule of DNA contains two ... - CORRECT ANSWER - polynucleotides. each
polynucleotide is a long strand of individual nucleotides
Each nucleotide contains one of four bases - CORRECT ANSWER - - Adenine, guanine,
cytosine, thymine, A-T, G-C
Nucleic acids are ... - CORRECT ANSWER - information storage molecules that contain
directions for the production of other molecules
, Process of Transcription - CORRECT ANSWER - info in a DNA gene is converted to an
RNA molecule in the nucleus
Process of translation - CORRECT ANSWER - RNA leaves nucleus, exiting through an
opening in the nuclear envelope called a nuclear pore. Once in the cytoplasm, the RNA molecule
makes its way to a ribosome, where the message it contains is converted to protein
Messenger RNA (mRNA) - CORRECT ANSWER - RNA molecule that carries copies of
instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
A molecule of mRNA contains... - CORRECT ANSWER - successive codon, sequences of
three nucleotides, each of which specific one amino acid
Polypeptide - CORRECT ANSWER - chain of amino acids
ribosomes - CORRECT ANSWER - the cellular structures that perform the translation of
mRNA polynucleotides into amino acid polypeptides. They are made from protein combined
with a special type of RNA called ribosomal RNA (a site where proteins are made)
Anticodon - CORRECT ANSWER - a sequence of three nucleotides forming a unit of
genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger
RNA.
triple code - CORRECT ANSWER - correspondence between an mRNA codon and its
amino acid
start codon - CORRECT ANSWER - AUG
stop codon - CORRECT ANSWER - UAA, UAG, UGA
mutation - CORRECT ANSWER - any change to the genetic information of cell or virus
