Which of the factors below weaken the hypothesis of abiotic synthesis of organic monomers in early Earthʹs atmosphere?

1.  the relatively short time between intense meteor bombardment and appearance of the first life forms

2.  the lack of experimental evidence that organic monomers can form by abiotic synthesis

3.  Uncertainty about which gases comprised early Earthʹs atmosphere

TLS Online TPP Program

#Question id: 787

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statement is INCORRECT with respect to the structure of DNA?

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#Question id: 17286

#Unit 13. Methods in Biology

Consider the following grouped frequency distribution :

 

What is the median of the distribution ? 

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#Question id: 4377

#Unit 3. Fundamental Processes

What is the function of TFIIH in the transcription initiation complex?

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#Question id: 12221

#Unit 7. System Physiology – Animal

Juvenile (type I) diabetes mellitus is often diagnosed because of polyuria (high urine flow) and polydipsia (frequent drinking) that occur because of which of the following?

TLS Online TPP Program

#Question id: 5728

#Unit 8. Inheritance Biology

A phenotypically normal man carries a translocated chromosome that contains the entire long arm of chromosome 14, part of the short arm of chromosome 14, and most of the long arm of chromosome 21. The man also carries a normal chromosome 14 and a normal chromosome 21. If he marries a cytologically (and phenotypically) normal woman, there is many chance that the couple will produce phenotypically abnormal children? Which of the following is correct combination?