TLS Online TPP Program

#Question id: 843


_______ enzymes that catalyze isomerization reactions in folding pathways of some proteins.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Peptide prolyl cis-trans isomerase (PPI)

  2. Protein disulfide isomerase (PDI)

  3. A & B

  4. Only A

More Questions
TLS Online TPP Program

#Question id: 14088

#Unit 1. Molecules and their Interaction Relevant to Biology

Type II topoisomerases change the linking number in 
A. Steps of two
B. Steps of three
C. Make transient double-strand breaks 
D. Make transient single-strand break
Mark the option with correct combination

TLS Online TPP Program

#Question id: 19380

#Unit 12. Applied Biology

Glyphosate results primarily from starving the cells of aromatic amino acids, which leads to

TLS Online TPP Program

#Question id: 10727

#Unit 10. Ecological Principles

The following table shows the number of individuals of each species found in two communities


The calculated evenness values for communities C1 and C2, respectively are

TLS Online TPP Program

#Question id: 12933

#Unit 13. Methods in Biology

Choose the correct order for the cloning process.
1. The production of cDNA is carried out using an enzyme termed Reverse transcriptase.
2. mRNA cannot be used directly in cloning.
3. It is possible to synthesis complementary DNA molecule to all the mRNA from the selected tissue.
4. The cDNA may be inserted into vectors and then cloned.

TLS Online TPP Program

#Question id: 7264

#Unit 5. Developmental Biology

The Dictyostelia social amoebas are found in a wide range of soil habitats. They can come together to form a fruiting structure, in which a proportion of cells are sacrificed to build the stalk and the remainder differentiate into resilient dormant spores. This multicellular life cycle is common to all Dictyostelids. It consists of an interconnected programme of cell movement and cell differentiation, and has been intensively studied in the model organism D. discoideum. Few mutants (Column A) and phenotypes (Column B) are listed in the table given below.

    Column A

    Column B

A. Loss of function of cAMP-dependent protein kinase (PKA)

i. cell develop normally but unable to germinate

B. Loss of function of RegA

ii. Loose aggregate form

C. Loss of function of adenylate cyclase B

iii. No aggregation

D. Loss of function of gp80

iv. accumulation of cAMP and PKA activation

 Match the correct mutant with the observed phenotype.