TLS Online TPP Program

#Question id: 824


why comparisons of the X-ray structures of hyperthermophilic enzymes with their mesophilic counterparts have failed to reveal any striking differences between them?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Covalent interactions almost same in thermophiles and mesophiles

  2. an increased size of the protein’s hydrophobic core

  3. Noncovalent interactions almost same in thermophiles and mesophiles

  4. Due to reduced surface-to-volume ratio

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TLS Online TPP Program

#Question id: 10292

#Unit 6. System Physiology – Plant

The oxidative pentose phosphate pathway also known as

TLS Online TPP Program

#Question id: 27672

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following Ramachandran plot showing correct graph for trans-proline possible phi and psi positions

TLS Online TPP Program

#Question id: 4875

#Unit 8. Inheritance Biology

Early in the development of a plant, a mutation in cpDNA removes a specific BgIII restriction site (B) In this species cpDNA is inherited maternally. Seeds from the plant are grown, and the resulting progeny plants are sampled for cpDNA. The cpDNAs are cut with BgIII, and Southern blots are hybridized with the probe P shown. The autoradiograms show three patterns of hybridization:

Which of the following is correct about plant of seed?

a. plant of seed 1 having only mutated chloroplast

b- Plant of seed 2 having only normal chloroplast

c- Plant of seed 3 having only normal chloroplast

d- Plant of seed 3 having both normal and mutant chloroplast

TLS Online TPP Program

#Question id: 5469

#Unit 8. Inheritance Biology

Breeding experiment was performed on pure lines of tomatoes differing in fruit weight. The plants were all grown in a controlled environment chamber providing equal environmental conditions for all individuals as far as humanly possible. The results were as follows:

a) One dominants polygene contribution?

b) What will be frequency of 20 g in F2 CLASSES?

c) Number of polygene loci for this character.

TLS Online TPP Program

#Question id: 2389

#Unit 2. Cellular Organization

Where the matrix polysaccharides are synthesized by