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.?

TLS Online TPP Program

#Question id: 27407

#Unit 1. Structure and Function of Biomolecules

Which of the following  reason is most accurately satisfying that archaebacteria can live in harsh environment

TLS Online TPP Program

#Question id: 27408

#Unit 1. Structure and Function of Biomolecules

The base structure of sphingosine known as

TLS Online TPP Program

#Question id: 27409

#Unit 1. Structure and Function of Biomolecules

What are the functions of Sphingosine-1- phosphate (S1P)

1.inflammation in allergic reactions

2.cell proliferation and angiogenesis 

3.malignant transformation, and movement

4.and migration of certain cells

TLS Online TPP Program

#Question id: 27410

#Unit 1. Structure and Function of Biomolecules

Which of the following drug mimics Sphingosine-1- phosphate (S1P)

TLS Online TPP Program

#Question id: 27411

#Unit 1. Structure and Function of Biomolecules

The chemical structure of blood group are made up of

TLS Online TPP Program

#Question id: 27412

#Unit 1. Structure and Function of Biomolecules

Choose the correct

1. Mutation in B-galactosidase leads to the deposition of GM1 causes  Generalized gangliosidosis

2. Mutation in hexosaminidase leads to the deposition of GM2 causes Tay-Sachs

3. Mutation in glucocerebrosidase leads to the deposition of Glc causes Gaucher disease

4. Mutation in sphingomyelinase leads to the deposition of Phosphocholine causes Niemann-Pick disease