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TLS Online TPP Program
#Question id: 31279
#Unit 2. Cellular Organization
In which phase Cdh1 become phosphorylated, and dissociates from APC/C, and APC/C becomes inactive?
TLS Online TPP Program
#Question id: 11395
#Unit 9. Diversity of Life Forms
Mitochondria are thought to be the descendants of certain alpha -proteobacteria. They are, however, no longer able to lead independent lives because most
genes originally present on their chromosome have moved to the nuclear genome. Which phenomenon accounts for the movement of these genes?
TLS Online TPP Program
#Question id: 12550
#Unit 10. Ecological Principles
In order to construct a reproductive table for a sexual species, you need to
TLS Online TPP Program
#Question id: 13092
#Unit 13. Methods in Biology
To express a yeast gene in E. coli, your task is to design a strategy to insert the yeast gene into the bacterial plasmid. Below is a map of the area of the yeast genome surrounding the gene in which you are interested.
The distance between each tick mark placed on the line above is 100 bases in length
Below are the enzymes you can use, with their specific cut sites shown 5’-XXXXXX-3’ 3’-XXXXXX-5’
The plasmid is 5,000 bases long and the two farthest restriction enzyme sites are 200 bases apart. The plasmid has an ampicillin resistance gene somewhere on the plasmid distal from the restriction cut sites.
Which two restriction enzymes would you use to design a way to get the insert into the vector if you had to use two enzymes simultaneously?
TLS Online TPP Program
#Question id: 15303
#Unit 4. Cell Communication and Cell Signaling
Neurofibromatosis, a benign tumor of the sheath cells that surround nerves, is caused by
a. Loss of both alleles of NF1
b. Mutation in RAS GAP-type protein
c. A single mutant NF1 allele
d. Mutation in SRC protein