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TLS Online TPP Program

#Question id: 2022

Which one of the following is not true for class 1 MHC protein?

#Unit 4. Cell Communication and Cell Signaling

  1. Class-I MHC gene encodes glycoprotein molecule which expressed on the surface of all nucleated cells and platelets. 

  2. MHC-I molecule contains a 45KDa α-chain associated non-covalentely with a 12KDa β2 microglobulin molecule. 

  3. Association of α-chain and β2 microglobulin is required for expression of class-I MHC molecule on cell membrane.

  4. Major function of MHC-I is to bind peptide antigen and present to CD4 T cells.

More Questions
TLS Online TPP Program

#Question id: 15376

#Unit 14. Methods in Biology

If a protein made up of three subunit α2βγ (Mr. of α = 25000, β = 50000, γ = 75000) which of the following correctly representing SDS and Native (buffer) gel
TLS Online TPP Program

#Question id: 15378

#Unit 8. Inheritance Biology

You find a pink geranium in your flowerbed of red geraniums. Seeds from self fertilization of this plant produce ¼ red plants, ½ pink plants, and ¼ white plants. When considering the visible phenotype, which explanation is most likely?
TLS Online TPP Program

#Question id: 15379

#Unit 8. Inheritance Biology

What are the possible offspring from a type A mother and a type AB father?
TLS Online TPP Program

#Question id: 15380

#Unit 8. Inheritance Biology

In soybeans, resistance to sudden death syndrome (SDS) is inherited as a dominant condition. In some cases, individuals that are not resistant to SDS (but whose parents were) can pass the trait on to their progeny. This is an example of which of the following?
TLS Online TPP Program

#Question id: 15381

#Unit 8. Inheritance Biology

Neurofibromatosis is a condition in humans which is generally inherited in a dominant fashion. Assuming this disorder is 90% penetrant, what is the chance that a single child born to a father with neurofibromatosis and a mother known not to carry the mutation will have the disorder?
TLS Online TPP Program

#Question id: 15382

#Unit 8. Inheritance Biology

In a group of fruit flies homozygous for an allele that causes a reduced number of thoracic bristles, you notice that the number of bristles varies from about half the normal number to only a few bristles. This is an example of which of the following?