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WorksheetsChapter 13 Book Test Review
Total questions: 28
Worksheet time: 23mins
Why did mice die with R strain was mixed with heat killed S strain?
the heat killed S strain took in the DNA of the R strain to become live S again
the R strain took in the DNA of the heat killed S to become live S
the live S strain took in the DNA of the R strain and became live R
The result of Hershey and Chase's experiments showed that the _____ of the virus enters the host where viral replication takes place.
DNA
Protein
Both DNA & Protein
AATCATGGA
What is the end result of DNA replication?
2 semi-conservative strands of DNA
1 semi-conservative strand of DNA
Half of a semi-conservative strand.
Nothing is created
What does the term semi-conservative mean?
DNA consists of half an old strand and half a new strand and the code stays conserved.
DNA consists of two old strands and the code stays conserved.
DNA consists of two new strands and the code stays conserved.
DNA consists of half an old strand and half a new strand and the code changes each time.
In the Hershey-Chase experiment, the components of bacteriophages were labeled with radioactive isotopes of sulfur and phosphorus. What was this designed to determine?
whether or not bacteriophages can infect bacteria
whether DNA or RNA is the genetic material of the virus
whether cells use DNA or proteins to store genetic material
whether or not viruses satisfy the criteria for life
The sequence of nitrogenous bases on a portion of a strand of DNA is GGTGACT. What is the corresponding sequence of its complementary strand?
CCACTGA
GGUGTAT
GGTGACT
TTAGATC
Which of the following is the first step of prokaryotic DNA replication?
The two new chromosomes are separated when the two cells divide
Regulatory proteins bind to a single starting point on the chromosome
Replication Starts and proceeds in both directions until the entire strand is copied
Enzymes unzip the strand
DNA Replication of Eukaryotas may start in many places and proceeds in both directions until each chromosome is copied.
True
False
DNA Replication of most Prokaryotic cells starts from a single point and proceeds in two directions until the entire chromosome is copied.
True
False
Telomeres are located near the tips of eukaryotic DNA. During DNA replication, what is the role of enzymes called telomerases?
removing damaged telomeres from the DNA molecules
attaching telomeres onto newly-synthesized DNA molecules
preventing telomeres from migrating elsewhere in a DNA molecule
preventing loss or damage of genes near telomeres
What would happen if a cell divides before DNA replication is completed?
Daughter cells would receive incomplete genetic information, but would regain lost information in the G1 phase.
Daughter cells would receive incomplete genetic information, but would regain lost information in the S phase.
Daughter cells would contain all genes of the parent cell, but would not function normally.
Daughter cells would receive incomplete genetic information and never regain it, thus may not be able to survive.
