Species that reproduce once and then die are ______ species.

TLS Online TPP Program

#Question id: 19193

#Unit 13. Methods in Biology

The first primer in the case of 3’ RACE is ___________

TLS Online TPP Program

#Question id: 19354

#Unit 12. Applied Biology

The best selection agents for the non-transformed cells from the transformed one.

1. Inhibit growth 

 2. Slowly kill

3. Initiate growth

Which of the following is true regarding selection agents?

TLS Online TPP Program

#Question id: 1073

#Unit 4. Cell Communication and Cell Signaling

Prions

TLS Online TPP Program

#Question id: 19310

#Unit 4. Cell Communication and Cell Signaling

Fusicoccin opposed the role of _____I______ and mimic the role of____II_____.

TLS Online TPP Program

#Question id: 15843

#Unit 8. Inheritance Biology

You have isolated two temperature-sensitive mutations in phage l that you suspect may be in the same gene. These phage mutants are called ts-1 and ts-2. Each mutant will form plaques at 35˚C but not at 42˚C. You cross ts-1 to ts-2 phage by coinfecting E. coli at the permissive temperature of 35˚C. When the resulting phage lysate is plated at 35˚C you count 10,000 plaques per ml of phage lysate, but when the same phage lysate is plated at 42˚C, there are only 80 plaques per ml.           What is the distance between the ts-1 and ts-2 mutations in m.u.?