TLS Online TPP Program

#Question id: 12015


The oxygen consumption of marine crabs acclimated to either 10°C or 20°C was measured at environmental temperatures of 5°C to 25°C to produce the following graph.

Which of the following can be correctly concluded from the information in the graph?

#Unit 10. Ecological Principles
  1. Acclimation temperature does not affect the rate of oxygen consumption.
  2. Crabs have higher rates of oxygen consumption when measured at 10°C than when measured at 20°C.
  3. Oxygen consumption is higher in the 10°C-acclimated crabs than in the 20°C-acclimated crabs at each test temperature.
  4. Acclimation to a high temperature induces a high rate of oxygen consumption at all test temperatures.
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TLS Online TPP Program

#Question id: 14147

#Unit 3. Fundamental Processes

Activators that stimulate this kind of promoter work by triggering a conformational change in either RNA polymerase or DNA; that is, they interact with the stable closed complex and induce a conformational change that causes transition to the open complex, this is an example of

TLS Online TPP Program

#Question id: 19709

#Unit 3. Fundamental Processes

Following are statements related to the telomere related to the stability chromosome
a) protecting the ends of chromosomes from degradation 
b) preventing chromosomal end fusion
c) protect genome from nucleolytic degradation
d) provide a mechanism for their replication by semiconservative length maintenance 
choose the correct statement 

TLS Online TPP Program

#Question id: 19710

#Unit 3. Fundamental Processes

Telomeric sequences can be written in the general form 

TLS Online TPP Program

#Question id: 19711

#Unit 3. Fundamental Processes

Telomere are marker for the healthy cell, if the cell shows indefinite replication (embryonic or stem cell) the size of telomere lies between the range of  

TLS Online TPP Program

#Question id: 19712

#Unit 3. Fundamental Processes

Size of telomeric sequences are marker for the cell division and healthy cell,  Below some of the stages and sizes of telomere are given below

i. 3 – 20 kb (TTAGGG)n

a. cancerous cell

ii. less than 3 kb (TTAGGG)n

b. apoptotic cell death

iii. Ends with no (TTAGGG)n

c. limited replication

iv. Up to 55 kb of (TTAGGG)n

d. indefinite replication

Match them correctly

TLS Online TPP Program

#Question id: 19713

#Unit 3. Fundamental Processes

Which of the followings is the incorrect statement regarding telomeric sequences