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TLS Online TPP Program

#Question id: 1727

Which of the following statements is TRUE of CD4?

#SCPH05 I Biotechnology

  1. CD4 is essentially an intracellular glycoprotein

  2. CD4 is heterodimeric

  3. CD4 binds processed peptide in its outer groove

  4. CD4 binds to MHC class II on antigen-presenting cells

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TLS Online TPP Program

#Question id: 94

#SCPH01 Biochemistry

A monosaccharide whose anomeric carbon atom has a glycosidic bond to an alcohol, amine or thiol is a ________.
TLS Online TPP Program

#Question id: 4732

#SCPH12 I Genetics

What is F2 phenotype ratio observed when a homozygous recessive mutation in either or both of two different genes results in the same mutant phenotype?
TLS Online TPP Program

#Question id: 14742

#SCPH05 I Biotechnology

Gel chromatography is used for hormone separation. A pilot-plant scale gel chromatography column packed with sephacryl resin is used to separate two hormones, A and B. The column is 5 cm in diameter and 30 cm in height: V, = 1.9x 10-4m3, Wr = 3x10-3m3 /kg dry sephacryl, ps =1.25 x 103 kg/m3 . The partition coefficients are kpA =0.38 and kpB= 0.15. If the eluting flow rate is 0.7 I/h, what is the retention time for each hormone? 
TLS Online TPP Program

#Question id: 1601

#SCPH05 I Biotechnology

Cytotoxin T cells express
TLS Online TPP Program

#Question id: 18863

#SCPH01 Biochemistry

A microscopes resolving power is a function of-