TLS Online TPP Program

#Question id: 5681


What is the arrangement of microtubules in sperm flagellum?

#Unit 5. Developmental Biology
  1. The core of the axoneme consists of two central singlet microtubules surrounded by a row of nine doublet microtubules.

  2. The core of the axoneme consists of two central doublet microtubules surrounded by a row of nine singlet microtubules.

  3. The core of the axoneme consists a row of nine central singlet microtubules surrounded by two doublet microtubules.

  4. The core of the axoneme consists of two central triplet microtubules surrounded by a row of nine doublet microtubules.

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TLS Online TPP Program

#Question id: 12538

#Unit 10. Ecological Principles

Some global warming models predict that, if permafrost in the tundra regions in the northern hemisphere melts, atmospheric CO2  levels will increase. Which of the following statements best explains this prediction?

TLS Online TPP Program

#Question id: 33367

#Unit 1. Molecules and their Interaction Relevant to Biology

This equation describes a


TLS Online TPP Program

#Question id: 4436

#Unit 3. Fundamental Processes

is the process by which that genetic material is passed on. Any mistake that arises during _II_can therefore easily be catastrophic, it becomes permanent in the genome of that individual and gets passed on to subsequent generations.

TLS Online TPP Program

#Question id: 10333

#Unit 6. System Physiology – Plant

Four elements, oxygen, carbon, and hydrogen and nitrogen are the major components of most organic compounds, which of the following elements are more abundant in plants ?

TLS Online TPP Program

#Question id: 3499

#Unit 11. Evolution and Behavior

In some jacana species, males take care of the eggs and young, and females compete among themselves for territories that contain one to several males. Female jacanas are significantly larger than males. Which of these statements would you predict to be true of this bird species?

a. Male jacana fitness is primarily limited by ability to take care of eggs and raise young.

b. Female jacana fitness is limited by the number of males in her territory with which a female mates.

c. Variation in reproductive success should be greater in male jacanas than in females.

d. Variation in reproductive success should be greater in female jacanas than in males.

e. Males and females have equal variation in reproductive success.