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TLS Online TPP Program

#Question id: 2134

The type of motion least common in biological membranes is:

#SCPH06 I Botany

  1. flip-flop diffusion of phospholipid from one monolayer to the other.

  2. lateral diffusion of individual lipid molecules within the plane of each monolayer.

  3. lateral diffusion of membrane proteins in the bilayer.

  4. lateral diffusion of protein molecules in the lipid bilayer

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TLS Online TPP Program

#Question id: 15618

#SCPH28 | Zoology

Wild type E. coli metabolizes the sugar lactose by expressing the enzyme ß-galactosidase. You have isolated a mutant that you call lac1-, which cannot synthesize ß-galactosidase and cannot grow on lactose (Lac-). During an condition  isolate  a second Lac– mutation, which you designate lac2-. Using P1 phage on this strain and use the resulting phage lysate to infect the lac2- strain, selecting for   Kanr   transductants. In this case, all 100   Kanr   transductants that are examined are Lac–. What does this result tell you about the relationship between the lac1- and lac2- mutations?
TLS Online TPP Program

#Question id: 5075

#I Life Science/ Life Sciences Group – I-V

Which of the following developmental processes has been most recently completed in the amphibian embryo shown here?

 
TLS Online TPP Program

#Question id: 3675

#SCPH01 Biochemistry

Which describes the role of primase during replication?
TLS Online TPP Program

#Question id: 4157

#SCPH01 Biochemistry

At the ribosome, the codon and anticodon associate by __.
TLS Online TPP Program

#Question id: 1265

#SCPH28 | Zoology

An example of an integrin containing cell junction is