TLS Online TPP Program

#Question id: 23691


A gene that contains introns can be made shorter (but remain functional) for genetic engineering purposes by using

#Unit 13. Methods in Biology
  1. RNA polymerase to transcribe the gene.
  2. a restriction enzyme to cut the gene into shorter pieces.
  3. reverse transcriptase to reconstruct the gene from its mRNA.
  4. DNA polymerase to reconstruct the gene from its polypeptide product.
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TLS Online TPP Program

#Question id: 33481

#Unit 2. Cellular Organization

A. In homologous introns, the pattern of divergence involves both changes in length.
B. Divergence in introns is due to deletions and insertions and base substitutions. 
C. Introns are slowly evolve while exons much more rapidly 
D. When a gene is compared among different species, there are instances where its exons are homologous but its introns have diverged so much that very little homology is retained.

TLS Online TPP Program

#Question id: 23242

#Unit 2. Cellular Organization

Carboxysomes containing bacteria are nitrifying bacteria. Which among the following are examples of such bacteria?
1.Cyanobacteria 
2.E. Coli
3.Thiobacilli
Mark the option with correct combination?

TLS Online TPP Program

#Question id: 29587

#Unit 6. System Physiology – Plant

Following are given stages of gibberellin biosynthetic pathway;
a) Geranylgeranyl diphosphate (GGPP) is converted to ent-kaurene  via copalyl diphosphate (CPP) in endoplasmic reticulum
b) In the endoplasmic reticulum, conversion of ent-kaurene into GA12 or GA53 depending on whether the GA is hydroxylated at carbon 13
c) the conversion of GA12 or GA53 into other GAs in cytosol proceeds with a series of oxidations at carbon 20
d) GA20 is then oxidized to the active gibberellin, GA1, by a 3β-hydroxylation reaction

Which of the following is the correct statements of GA biosynthesis?

TLS Online TPP Program

#Question id: 12926

#Unit 13. Methods in Biology

PCR is undertaken with a fluorescence reporter / quencher pair called______

TLS Online TPP Program

#Question id: 32387

#Unit 2. Cellular Organization

During myosin movement along actin filaments, hydrolysis of ATP occurs, but the ADP and inorganic phosphate (Pi) remain tightly bound to the protein. This state known as: