Using the genetic code shown here, predict the amino acid sequence that would be produced from the following partial
DNA sequence if the top strand is the template strand:3
’-...TAC ACG TGG ACG TGA TTC TTA...-5’
5’-...ATG TGC ACC TGC ACT AAG AAT...-3’
What will be an ideal response?
ANSWER: If the top strand is the template strand, the RNA will be
5’- ...AUG UGC ACC UGC ACU AAG AAU...-3’
Therefore, the amino acid sequence for this stretch of nucleotides would be
met-cys-thr-cys-thr-lys-asn
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Analysis of the data obtained shows that two students each have two fragments, two students each have three fragments, and two students each have one only. What does this demonstrate?
A) Each pair of students has a different gene for this function. B) The two students who have two fragments have one restriction site in this region. C) The two students who have two fragments have two restriction sites within this gene. D) The students with three fragments are said to have "fragile sites." E) Each of these students is heterozygous for this gene.
Which of the following is not true about the termination of replication in bacteria?
A. Termination occurs at sequences called Ter sites. B. Binding of Tus proteins to Ter sites blocks the advance of the replication fork by interacting with DnaB helicase. C. There are two clusters of Ter sites oriented in opposite directions. D. Tus-Ter complex activity is polar; the replication forks can pass through the first set but are blocked by the second. E. Replication forks can proceed past both Tus-Ter clusters, which causes problems when it runs into RNA polymerase head first.
Any inanimate object that can serve as a vehicle for the spread of disease when contacted by an infected individual is called a(n)
What will be an ideal response?
From his work with Streptococcus pneumoniae bacteria, Griffith described the transforming principle. What did this principle prove to be?
a. a polysaccharide capsule b. a phospholipid c. protein d. DNA