TLS Online TPP Program

#Question id: 12113


In belding’s ground squirrels, it is mostly the females that behave altruistically by sounding alarm calls. What is the likely reason for this distinction?

#Unit 10. Ecological Principles
  1. Males have smaller vocal cords and are less likely to make sounds.
  2. Females invest more in foraging and food stores, so they are more defensive.
  3. Females settle in the area in which they were born, so the calling females are warning kin.
  4. The sex ratio is biased.
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TLS Online TPP Program

#Question id: 14863

#Unit 6. System Physiology – Plant

Plant and fungal plasma membrane H+-ATPases and Ca2+-ATPases are members of a class known as P-type ATPases, which are phosphorylated as part of the catalytic cycle that hydrolyzes ATP. Because of this phosphorylation step, the plasma membrane ATPases are strongly inhibited by

TLS Online TPP Program

#Question id: 14864

#Unit 6. System Physiology – Plant

Which of the following statements of ATPase is INCORRECT?

TLS Online TPP Program

#Question id: 14880

#Unit 4. Cell Communication and Cell Signaling

Which of the following cells control the differentiation HSCs (hematopoietic stem cells)?

TLS Online TPP Program

#Question id: 14881

#Unit 4. Cell Communication and Cell Signaling

The paradigmatic adult stem cell niche, contains several cell types that coordinate HSC development, including in column I and column II

TLS Online TPP Program

#Question id: 14882

#Unit 4. Cell Communication and Cell Signaling

In bone marrow, stem cells are committed to different lineages. Factors that stimulate colonies of these different lineages are interleukin-3 (multi-CSF), IL-7,  granulocyte- macrophage colony stimulating factor (GM-CSF) and granulocyte or macrophage colony- stimulating factor (G-CSF or M-CSF). In a mouse deficient in IL-7 the number of which cells will not be altered

TLS Online TPP Program

#Question id: 14883

#Unit 4. Cell Communication and Cell Signaling

Where is double negative selection is found during T-cell formation?