TLS Online TPP Program

#Question id: 4947


The first genes on Earth were probably

#Unit 11. Evolution and Behavior
  1. DNA produced by reverse transcriptase from abiotically produced RNA.

  2. DNA molecules whose information was transcribed to RNA and later translated in polypeptides.

  3. auto-catalytic RNA molecules.

  4. RNA produced by autocatalytic, proteinaceous enzymes.

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TLS Online TPP Program

#Question id: 17072

#Unit 12. Applied Biology

Plastic Film, Teflon (fluoroethylenepropylene copolymer) is biologically inert and are extensively used for monolayer and suspension cultures as thry are

TLS Online TPP Program

#Question id: 16119

#Unit 7. System Physiology – Animal

Following statements are regarding to Shivering, which is the most potent mechanism for increasing heat production in the body. 
A. Cold environmental temperatures activate centers in the posterior hypothalamus during shivering, which then activate the α and γ motoneurons innervating skeletal muscle. 
B. Shivering involves skeletal muscle contracts rhythmically, generating heat and raising body temperature.
C. Shivering involves stimulation of Na+-K+ ATPase and raising body temperature.
D. Shivering involves stimulation of β receptors in brown fat, which increases metabolic rate and heat production.
Which of the following combination is correct?

TLS Online TPP Program

#Question id: 31414

#Unit 4. Cell Communication and Cell Signaling

Which one of the following options represents the correct match between the proteins (Column X) and related processes(Column Y)?

TLS Online TPP Program

#Question id: 5750

#Unit 8. Inheritance Biology

 type of microorganism that can exist on minimal medium

TLS Online TPP Program

#Question id: 15005

#Unit 8. Inheritance Biology

You identify a previously unidentified plant species and decide to study its genetics. You establish true breeding strains for leaf shape (longer than wide vs equal length and width) and flower color (white vs. yellow). When you perform a dihybrid cross with these strains, you find that your results are very different than those predicted by a 9:3:3:1 ratio. You calculate a chi square and get a p value of less than 0.0001. Which of the following statements is most accurate based on this observation?