TLS Online TPP Program

#Question id: 4968


Which of these observations fails to support the endosymbiotic theory for the origin of eukaryotic cells?

#XL - S Microbiology
  1. the existence of structural and molecular differences between the plasma membranes of prokaryotes and the internal membranes of mitochondria and chloroplasts

  2. the existence of size differences between the cytosolic ribosomes of eukaryotes and the ribosomes within mitochondria and chloroplasts

  3. the existence of size differences between some prokaryotic cells and mitochondria

  4. the existence of rRNA sequence differences between the cytosolic ribosomes of eukaryotes and the ribosomes within mitochondria and chloroplasts

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TLS Online TPP Program

#Question id: 4629

#XL - S Microbiology

In the mid-1900s, the Soviet geneticist Lysenko believed that his winter wheat plants, exposed to ever-colder temperatures, would eventually give rise to ever more cold-tolerant winter wheat. Lysenkoʹs attempts in this regard were most in agreement with the ideas of

TLS Online TPP Program

#Question id: 4629

#XL - T Zoology

In the mid-1900s, the Soviet geneticist Lysenko believed that his winter wheat plants, exposed to ever-colder temperatures, would eventually give rise to ever more cold-tolerant winter wheat. Lysenkoʹs attempts in this regard were most in agreement with the ideas of

TLS Online TPP Program

#Question id: 4630

#XL - S Microbiology

Which pair would have been likely to agree that strata such as those depicted here were deposited gradually over long periods of time by subtle mechanisms that are still at work?

TLS Online TPP Program

#Question id: 4630

#XL - T Zoology

Which pair would have been likely to agree that strata such as those depicted here were deposited gradually over long periods of time by subtle mechanisms that are still at work?

TLS Online TPP Program

#Question id: 4631

#XL - S Microbiology

As a young biologist, Charles Darwin had expected the living plants of temperate South America would resemble those of temperate Europe, but he was surprised to find that they more closely resembled the plants of tropical South America. The biological explanation for this observation is most properly associated with the field of

TLS Online TPP Program

#Question id: 4631

#XL - T Zoology

As a young biologist, Charles Darwin had expected the living plants of temperate South America would resemble those of temperate Europe, but he was surprised to find that they more closely resembled the plants of tropical South America. The biological explanation for this observation is most properly associated with the field of