Biology the Core 3rd Edition: Chapter 6
HIGHLY RATED!!
How do transfer RNAs (tRNAs) bring the correct amino acid to the growing polypeptide? -
(ANSWER)By complementary base pairing between the tRNA anticodon and the messenger
(mRNA) codon
Bacterial plasmids are of particular interest to biotechnologists, because plasmids ________. -
(ANSWER)can deliver DNA to other cells
In eukaryotic cells, transcription occurs in the ________, while translation occurs in the
________. - (ANSWER)nucleus; cytoplasm
What role do ribosomes play in protein synthesis? - (ANSWER)Ribosomes provide a site for
tRNA to bind to mRNA.
What is a genome? - (ANSWER)All of the genes in an organism
Which codon always signals the start of a genetic message? - (ANSWER)AUG
What is a plasmid? - (ANSWER)A circular piece of bacterial DNA that copies independently of
the main bacterial chromosome
Sites within the human genome where a short nucleotide sequences is repeated many times in a
row are known as ________. - (ANSWER)short tandem repeats
The spread of cancer cells from their site of origin to other points in the body is called ________.
- (ANSWER)metastasis
What is the correct flow of information from gene to protein? - (ANSWER)DNA-mRNA-protein
Inserting or deleting a nucleotide in a protein-coding sequence produces what type of mutation? -
(ANSWER)Frameshift
The end of translation occurs when ________. - (ANSWER)a stop codon in the mRNA is
reached
Restriction enzymes are ________. - (ANSWER)proteins that cut DNA at specific nucleotide
sequences
You have three copies of a particular DNA molecule. What technique would you use to make
more copies of the molecule? - (ANSWER)PCR
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, How many messenger RNA (mRNA) bases make up a codon? - (ANSWER)Three
Successful DNA replication results in ________. - (ANSWER)two double helix molecules, each
half parental DNA and half newly synthesized DNA
A DNA molecule is a polymer made of ________. - (ANSWER)nucleotides
Ribosomes are made up of ________. - (ANSWER)protein and rRNA
Mutations are changes in the sequence of ________. - (ANSWER)DNA
The polymerase chain reaction (PCR) is an important technique in biotechnology, because it
allows researchers to ________. - (ANSWER)make many copies of a specific DNA sequence
A food item that is labeled as GMO ________. - (ANSWER)is made from genetically altered
organisms
Which of the following features of DNA molecules contain the actual code for building proteins?
- (ANSWER)Sequence of bases
If an organism is transgenic, then it ________. - (ANSWER)has one or more genes from another
species
Using the DNA sequence TACGGTACCATTGCGCAA, determine which of the following
choices is the complementary RNA molecule. - (ANSWER)AUGCCAUGGUAACGCGUU
According to complementary base-pairing rules, G pairs with ________. - (ANSWER)C
Which of the following build(s) new strands of DNA? - (ANSWER)DNA polymerases build
new strands of DNA by adding DNA nucleotides one at a time.
Which statement about DNA replication is CORRECT? - (ANSWER)The leading and lagging
strands are the new strands of DNA made during DNA replication. The leading strand is built
continuously, and the lagging strand is built in pieces.
During DNA replication, which nucleotide will bind to an A nucleotide in the parental DNA? -
(ANSWER)A binds with T.
The molecule that seals the gaps between the pieces of DNA in the lagging strand is -
(ANSWER)DNA ligase seals the gaps between the pieces of DNA in the lagging strand, turning
it into a continuous strand.
Which statement about DNA replication is FALSE? - (ANSWER)DNA ligase adds nucleotides
to the lagging strand.
Page 2 of 6
HIGHLY RATED!!
How do transfer RNAs (tRNAs) bring the correct amino acid to the growing polypeptide? -
(ANSWER)By complementary base pairing between the tRNA anticodon and the messenger
(mRNA) codon
Bacterial plasmids are of particular interest to biotechnologists, because plasmids ________. -
(ANSWER)can deliver DNA to other cells
In eukaryotic cells, transcription occurs in the ________, while translation occurs in the
________. - (ANSWER)nucleus; cytoplasm
What role do ribosomes play in protein synthesis? - (ANSWER)Ribosomes provide a site for
tRNA to bind to mRNA.
What is a genome? - (ANSWER)All of the genes in an organism
Which codon always signals the start of a genetic message? - (ANSWER)AUG
What is a plasmid? - (ANSWER)A circular piece of bacterial DNA that copies independently of
the main bacterial chromosome
Sites within the human genome where a short nucleotide sequences is repeated many times in a
row are known as ________. - (ANSWER)short tandem repeats
The spread of cancer cells from their site of origin to other points in the body is called ________.
- (ANSWER)metastasis
What is the correct flow of information from gene to protein? - (ANSWER)DNA-mRNA-protein
Inserting or deleting a nucleotide in a protein-coding sequence produces what type of mutation? -
(ANSWER)Frameshift
The end of translation occurs when ________. - (ANSWER)a stop codon in the mRNA is
reached
Restriction enzymes are ________. - (ANSWER)proteins that cut DNA at specific nucleotide
sequences
You have three copies of a particular DNA molecule. What technique would you use to make
more copies of the molecule? - (ANSWER)PCR
Page 1 of 6
, How many messenger RNA (mRNA) bases make up a codon? - (ANSWER)Three
Successful DNA replication results in ________. - (ANSWER)two double helix molecules, each
half parental DNA and half newly synthesized DNA
A DNA molecule is a polymer made of ________. - (ANSWER)nucleotides
Ribosomes are made up of ________. - (ANSWER)protein and rRNA
Mutations are changes in the sequence of ________. - (ANSWER)DNA
The polymerase chain reaction (PCR) is an important technique in biotechnology, because it
allows researchers to ________. - (ANSWER)make many copies of a specific DNA sequence
A food item that is labeled as GMO ________. - (ANSWER)is made from genetically altered
organisms
Which of the following features of DNA molecules contain the actual code for building proteins?
- (ANSWER)Sequence of bases
If an organism is transgenic, then it ________. - (ANSWER)has one or more genes from another
species
Using the DNA sequence TACGGTACCATTGCGCAA, determine which of the following
choices is the complementary RNA molecule. - (ANSWER)AUGCCAUGGUAACGCGUU
According to complementary base-pairing rules, G pairs with ________. - (ANSWER)C
Which of the following build(s) new strands of DNA? - (ANSWER)DNA polymerases build
new strands of DNA by adding DNA nucleotides one at a time.
Which statement about DNA replication is CORRECT? - (ANSWER)The leading and lagging
strands are the new strands of DNA made during DNA replication. The leading strand is built
continuously, and the lagging strand is built in pieces.
During DNA replication, which nucleotide will bind to an A nucleotide in the parental DNA? -
(ANSWER)A binds with T.
The molecule that seals the gaps between the pieces of DNA in the lagging strand is -
(ANSWER)DNA ligase seals the gaps between the pieces of DNA in the lagging strand, turning
it into a continuous strand.
Which statement about DNA replication is FALSE? - (ANSWER)DNA ligase adds nucleotides
to the lagging strand.
Page 2 of 6
