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TLS Online TPP Program

#Question id: 10332

The four-chambered hearts of birds and the four-chambered hearts of mammals evolved independently of each other. If one were unaware of this independence, then one might logically conclude that

#XL - S Microbiology
  1. the birds were the first to evolve a 4-chambered heart.
  2. birds and mammals are more distantly related than is actually the case.
  3. early mammals possessed feathers.
  4. the common ancestor of birds and mammals had a four-chambered heart.
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TLS Online TPP Program

#Question id: 7704

#XL - S Microbiology

The best classification system is that which most closely ________.
TLS Online TPP Program

#Question id: 12691

#General Aptitude

If the area of a rectangle be (x^2 +7x + 10) sq. cm, then one of the possible perimeter of it is
TLS Online TPP Program

#Question id: 31428

#XL - S Microbiology

If a bacterial species has a generation time of 20 minutes, how many generations will occur in 2 hours?
TLS Online TPP Program

#Question id: 293

#XL - Q Biochemistry

Which of the following types of bonds or interactions between lipid hydrocarbon tails is responsible for lipids forming a membrane bilayer or membranous vesicles in water
TLS Online TPP Program

#Question id: 300

#XL - Q Biochemistry

Hydrogen bonding occurs in molecules when ___________________.