Bio 1100 Exam 4 QUESTIONS WITH
ANSWERS
Which of the following statements regarding a DNA double helix is
true? - CORRECT ANSWERS ✔✔The amount of adenine is equal to
the amount of thymine, and the amount of guanine is equal to the
amount of cytosine.
DNA replication - CORRECT ANSWERS ✔✔uses each strand of a
DNA molecule as a template for the creation of a new strand.
When one DNA molecule is copied to make two new DNA
molecules, the resulting DNA molecules contain - CORRECT
ANSWERS ✔✔50% of the parent DNA.
Multiple origins of replication on the DNA molecules of eukaryotic
cells serve to - CORRECT ANSWERS ✔✔shorten the time
necessary for DNA replication.
Which of the following enzymes catalyzes the elongation of a new
DNA strand? - CORRECT ANSWERS ✔✔DNA polymerase III
Why does a DNA strand grow only in the 5ʹ to 3ʹ direction? -
CORRECT ANSWERS ✔✔because DNA polymerases can only add
nucleotides to the 3ʹ end of the growing molecule
, The transfer of genetic information from DNA to RNA is called -
CORRECT ANSWERS ✔✔transcription
The directions for each amino acid in a polypeptide are indicated
by a codon that consists of ________ nucleotides in an RNA
molecule. - CORRECT ANSWERS ✔✔three
We would expect that a 15-nucleotide sequence that includes a
stop codon at the end (as part of the 15-nucleotide sequence) will
direct the production of a polypeptide that consists of - CORRECT
ANSWERS ✔✔four amino acids
In the genetic code - CORRECT ANSWERS ✔✔many amino acids
are specified by more than one codon
Which of the following enzymes catalyzes the production of a
strand of RNA from DNA? - CORRECT ANSWERS ✔✔RNA
polymerase
Which of the following occurs when RNA polymerase attaches to
the promoter DNA? - CORRECT ANSWERS ✔✔initiation of a new
RNA molecule
________ marks the end of a gene and causes transcription to stop.
- CORRECT ANSWERS ✔✔A terminator
Where do transcription and translation occur in prokaryotic cells? -
CORRECT ANSWERS ✔✔in the cytoplasm
ANSWERS
Which of the following statements regarding a DNA double helix is
true? - CORRECT ANSWERS ✔✔The amount of adenine is equal to
the amount of thymine, and the amount of guanine is equal to the
amount of cytosine.
DNA replication - CORRECT ANSWERS ✔✔uses each strand of a
DNA molecule as a template for the creation of a new strand.
When one DNA molecule is copied to make two new DNA
molecules, the resulting DNA molecules contain - CORRECT
ANSWERS ✔✔50% of the parent DNA.
Multiple origins of replication on the DNA molecules of eukaryotic
cells serve to - CORRECT ANSWERS ✔✔shorten the time
necessary for DNA replication.
Which of the following enzymes catalyzes the elongation of a new
DNA strand? - CORRECT ANSWERS ✔✔DNA polymerase III
Why does a DNA strand grow only in the 5ʹ to 3ʹ direction? -
CORRECT ANSWERS ✔✔because DNA polymerases can only add
nucleotides to the 3ʹ end of the growing molecule
, The transfer of genetic information from DNA to RNA is called -
CORRECT ANSWERS ✔✔transcription
The directions for each amino acid in a polypeptide are indicated
by a codon that consists of ________ nucleotides in an RNA
molecule. - CORRECT ANSWERS ✔✔three
We would expect that a 15-nucleotide sequence that includes a
stop codon at the end (as part of the 15-nucleotide sequence) will
direct the production of a polypeptide that consists of - CORRECT
ANSWERS ✔✔four amino acids
In the genetic code - CORRECT ANSWERS ✔✔many amino acids
are specified by more than one codon
Which of the following enzymes catalyzes the production of a
strand of RNA from DNA? - CORRECT ANSWERS ✔✔RNA
polymerase
Which of the following occurs when RNA polymerase attaches to
the promoter DNA? - CORRECT ANSWERS ✔✔initiation of a new
RNA molecule
________ marks the end of a gene and causes transcription to stop.
- CORRECT ANSWERS ✔✔A terminator
Where do transcription and translation occur in prokaryotic cells? -
CORRECT ANSWERS ✔✔in the cytoplasm
