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TLS Online TPP Program

#Question id: 1530

What are the differences and similarities between the transforming genes of retroviruses and those of DNA tumor viruses?

#Unit 4. Cell Communication and Cell Signaling

  1. The oncoproteins encoded by transducing retroviruses are derived from viral replication, whereas those encoded by DNA viruses are derived from normal cell proteins. Both types of viruses express oncoproteins from integrated genomes.

  2. The oncoproteins encoded by transducing retroviruses are derived from normal cell proteins, whereas those encoded by DNA viruses are required for viral replication. Both types of viruses express oncoproteins from integrated genomes.

  3. There is no difference between the transforming genes of retroviruses and DNA tumor viruses. Both types of viruses express oncoproteins from integrated genomes.

  4. The oncoproteins encoded by transducing retroviruses are derived from normal cell proteins, whereas those encoded by DNA viruses are required for viral replication. There is no similarities in both types of viruses.

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TLS Online TPP Program

#Question id: 15454

#Unit 4. Cell Communication and Cell Signaling

B cells migrate to the lymphoid follicles, they are directed by chemokine interaction_________, which is secreted by follicular dendritic cells (FDCs)
TLS Online TPP Program

#Question id: 23416

#General Aptitude

Find the odd one out of the following
TLS Online TPP Program

#Question id: 10810

#Unit 6. System Physiology – Plant

A mechanism for preventing sap loss entails closing sieve plate pores with callose, which is
TLS Online TPP Program

#Question id: 27424

#Unit 1. Molecules and their Interaction Relevant to Biology

Conversion of antigen are possible with the help of enzyme then O  A antigen , O B antigen these conversion are catalysed by enzyme a and b which are
TLS Online TPP Program

#Question id: 5713

#Unit 8. Inheritance Biology

Following some statement are correct?

A) Translocation may be associated with movement of genetic material within the same chromosome

B) A person that is heterozygous for translocation may result in non viability in their zygote

C)  A person that is heterozygous for inversion may result in non viability in their recombinant zygote

D) A person that is heterozygous for translocation and lack of crossing over within translocated area result in all viable gametes