TLS Online TPP Program

#Question id: 82


The structures of D-ribose and D-arabinose are shown below. These two molecules are

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. epimers 

  2. enantiomers

  3. tautomers 

  4. anomers

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TLS Online TPP Program

#Question id: 5731

#Unit 8. Inheritance Biology

If an individual is heterozygous for this translocation, the consequence in meiosis will be as follows:

A) Segregation results in a + c in one Gametes and b + d in another gametes, have duplication and deficiency so unable to produce viable offspring

B) Segregation results in a + b in one Gametes and c + d in another gametes, have normal chromosome so all viable offspring produced

C) Segregation results in a + d in one Gametes with normal chromosome and b + c in another gametes contains translocation arrangement, all viable offspring produced

D) Segregation results in a + d in one Gametes with normal chromosome, will produced viable offspring while b + c in another gametes contains translocation arrangement, will produce non viable offspring.

TLS Online TPP Program

#Question id: 5136

#Unit 5. Developmental Biology

Some statements regarding to hippo pathway.

A. The Hippo signal transduction pathway have a dedicated ligand or receptor

B. Hippo stands for one of several important kinases that are critical for organ size control

C. It was first identified in Drosophila, where its loss resulted in a “hippopotamus”-shaped phenotype due to excessive growth

D. Gain of Hippo causes cells to divide significantly faster while slowing apoptosis

E. overexpression of its main transcriptional effector, Yorkie causes cells to divide significantly faster while slowing apoptosis

Which of the following combination are incorrect?

TLS Online TPP Program

#Question id: 18074

#Unit 13. Methods in Biology

Affinity chromatography on oligo(dT)-cellulose columns, is used for eukaryotic mRNA extraction, instead of using oligo(dT)-cellulose we can also use

TLS Online TPP Program

#Question id: 7567

#General Aptitude

The Delhi Express runs @ 144 kilometers per hours and it reaches destination 20 minute ahead of schedule. If it averages 100 km/hour, it reaches 24 minute behind schedule. What is the average speed it should maintain in order to reach the destination on schedule?

TLS Online TPP Program

#Question id: 13145

#Unit 8. Inheritance Biology

We can construct a genetic map by considering the recombination frequencies for each pair of genes. The recombination frequency between a and b is 50%, a and c is 50%, and b and c is 20%. What will be the correct prediction about this statements;
a)  Recombination frequency between genes a and b and gene a and c is expected with independent assortment
b) The genes a and b and gene a and c may either be on different chromosomes or be very far apart on the same chromosome;  so we will place them in different linkage groups
c) The gene b and c are linked
d) The gene b and c are unlinked
Which of the following is the correct sequence?