TLS Online TPP Program

#Question id: 23683


What is the enzymatic function of restriction enzymes?

#Unit 13. Methods in Biology
  1. to add new nucleotides to the growing strand of DNA
  2. to join nucleotides during replication
  3. to join nucleotides during transcription
  4. to cleave nucleic acids at specific sites
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TLS Online TPP Program

#Question id: 10500

#Unit 6. System Physiology – Plant

Orange carotenoid protein (OCP) is involve in the photoprotection, these protein complex function as light intensity sensor provides;

TLS Online TPP Program

#Question id: 19019

#Unit 9. Diversity of Life Forms

Arrange the following structures, which can be found on male pine trees, from the largest structure to the smallest structure (or from most inclusive to least inclusive). 
1. sporophyte 2. microspores 
3. microsporangia 4. Pollen cone 
5. Pollen nuclei 

TLS Online TPP Program

#Question id: 3398

#Unit 11. Evolution and Behavior

Genetic drift in a small population for multiple generations can significantly affect the composition of a population’s gene pool. Following some observation are given for reason of Genetic drift?

A) Small populations are threatened by a loss of genetic variability. This loss may be caused by inbreeding, genetic drift, and limited mating.

B) Sampling error can arise is through the founder effect, which is due to the limited matting within population

C) Genetic drift arises is through a genetic bottleneck, which develops when a population undergoes a drastic reduction in population size.

D) Variance in allele frequency due to genetic drift will be maximal when one allele is very rare and the population size is small.

Which of the above observation are true?

TLS Online TPP Program

#Question id: 1082

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a type of signaling in which a cells respond to substrate that they themselves release ?

TLS Online TPP Program

#Question id: 10318

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following phospholipase generates lysophospholipids?