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TLS Online TPP Program

#Question id: 11501

According to the endosymbiotic theory of the origin of eukaryotic cells, how did mitochondria originate?

#Unit 9. Diversity of Life Forms
  1. from infoldings of the plasma membrane, coupled with mutations of genes for proteins in energy-transfer reactions
  2. from engulfed, originally free-living prokaryotes
  3. by secondary endosymbiosis
  4. from the nuclear envelope folding outward and forming mitochondrial membranes
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TLS Online TPP Program

#Question id: 262

#Unit 1. Molecules and their Interaction Relevant to Biology

Changes in the topology and three-dimensional shape of B-DNA can result from
TLS Online TPP Program

#Question id: 926

#Unit 1. Molecules and their Interaction Relevant to Biology

The carbon atoms from a fatty acid with an odd number of carbons will enter the citric acid cycle as acetyl-CoA and:
TLS Online TPP Program

#Question id: 10582

#Unit 10. Ecological Principles

Which of the following is incorrect?
TLS Online TPP Program

#Question id: 5116

#Unit 5. Developmental Biology

Which of the following reflects Weismann’s model of development?
TLS Online TPP Program

#Question id: 27131

#Unit 7. System Physiology – Animal

A 40-year-old woman comes to her primary care physician complaining of nervousness and an unexplained weight loss of 20 pounds over the past 3 months despite her impression that  she is eating all the time. On physical examination, her eyes are  found to be protruding, her skin is moist and warm, and her fingers have a slight tremor. Compared to a normal individual, a biopsy of her thyroid gland would most likely reveal which of the following: