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TLS Online TPP Program

#Question id: 12733

It provides a key marker of potential disease development and reaction to individual treatment.

#Unit 13. Methods in Biology
  1. SBPs
  2. DNA
  3. SNPs
  4. Mutation
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TLS Online TPP Program

#Question id: 9271

#Unit 6. System Physiology – Plant

Chlorophylls a and b are abundant in green plants, and c and d are found in some protists and cyanobacteria. A number of different types of bacteriochlorophyll have been found; which type of chlorophyll is the most widely distributed, shows the distribution of pigments in different types of photosynthetic organisms;
TLS Online TPP Program

#Question id: 10299

#Unit 6. System Physiology – Plant

The stages of respiration take place within an organelle enclosed by a double membrane, the mitochondrion. Which of the following processes occur only inside the mitochondria?
TLS Online TPP Program

#Question id: 12397

#Unit 6. System Physiology – Plant

when auxin binds to its receptor is the activation of a select group of transcription factors. The activated transcription factors enter the nucleus and promote the expression of specific genes. Genes whose expression is stimulated by the activation of pre-existing  transcription factors are called primary response genes or early genes. 
a) Some of the early genes encode proteins that regulate the transcription of secondary response genes, or late genes, that are required for the short-term responses to the hormone
b) Early genes are involved in intercellular communication, or cell-to-cell signaling and some also involved in adaptation to stress
c) Secondary response genes are required for the long-term responses to the hormone. Because late genes require de novo protein synthesis, their expression can be blocked by protein synthesis inhibitors
d) Early-gene expression can also be blocked by inhibitors of protein synthesis such as cycloheximide, the time required for the expression of the early genes can be quite short, ranging from a few minutes to several hours
Which of the following is the correct prediction about primary response gene?
TLS Online TPP Program

#Question id: 10485

#Unit 6. System Physiology – Plant

What is the role of blue light in terms of stomatal study?

a.) Blue light activates a proton-pumping ATPase in the guard cell plasma membrane and leading to stomatal opening

b.) blue-light stimulation lowers the pH of the apoplastic space surrounding the guard cells, and generates the driving force needed for ion uptake and stomatal opening

c.) The sensitivity of guard cells to blue light increases as a function of their zeaxanthin concentration

d.) npq1 mutant opens at higher fluence rates of blue light, whereas the phot1/phot2 mutant fails to show any blue light–stimulated opening

Which one of the following combination is correct?
TLS Online TPP Program

#Question id: 23895

#Unit 13. Methods in Biology

Which technique separates nucleic acids (DNA and RNA) by molecular weight?