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TLS Online TPP Program

#Question id: 5120

Which one of the following statements are regarding to epiboly is correct?

#Unit 5. Developmental Biology

  1. Movement of epithelial sheets spreading as a unit to enclose deeper layers of the embryo.

  2. Can occur by cells dividing, by cells changing their shape or by intercalation of several layers of cells.

  3. Splitting of one cellular sheet into two more or less parallel sheets.

  4. Both A and B

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TLS Online TPP Program

#Question id: 12137

#Unit 10. Ecological Principles

Dwarf mistletoes are flowering plants that grow on certain forest trees. They obtain nutrients and water from the vascular tissues of the trees. The trees derive no known benefits from the dwarf mistletoes. Which of the following best describes the interactions between dwarf mistletoes and trees?
TLS Online TPP Program

#Question id: 27985

#Unit 1. Molecules and their Interaction Relevant to Biology

Over all net reaction for Q cycle is
TLS Online TPP Program

#Question id: 31226

#Unit 2. Cellular Organization

Cohesins associate with chromosomes by cohesin loading factors, known as:
TLS Online TPP Program

#Question id: 23117

#Unit 2. Cellular Organization

Choose the correct statement of the following  
a. The nucleosome consists of approximately equal masses of DNA and histones (including H1). 
b. The four core histones are present in equal amounts in the cell.
c. H1 is half as abundant as the other histones, which is consistent with the finding that only one molecule of H1 can associate with a nucleosome.
d. One turn around the nucleosome takes 80 bp of DNA
TLS Online TPP Program

#Question id: 11052

#Unit 10. Ecological Principles

An example of territoriality is