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TLS Online TPP Program

#Question id: 11996

Which of the following statements best describes the difference in approach to studying the environment by early naturalists compared to present-day ecologists?

#Unit 10. Ecological Principles
  1. Early  naturalists  employed  a  descriptive  approach;  present-day ecologists  generate  hypotheses, design experiments, and draw conclusions from their observations.
  2. Early naturalists manipulated the environment and observed changes in plant and animal populations, while modern ecology focuses on population dynamics.
  3. Early naturalists systematically recorded what they observed in their environment; modern ecology is only concerned with man's impact on the environment.
  4. Early naturalists were interested with man's interaction with the natural world; present-day ecologists seek to link ecology to developmental biology
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TLS Online TPP Program

#Question id: 14079

#Unit 1. Molecules and their Interaction Relevant to Biology

Which DNA is favored in many solutions that are relatively devoid of water with the base pair per turn of
A. B DNA
B. A DNA
C. Z DNA
D. 10 bp per turn
E. 11 bp per turn
F. 12 bp per turn
Which of the following combination is correct?
TLS Online TPP Program

#Question id: 14080

#Unit 1. Molecules and their Interaction Relevant to Biology

 Hairpin and cruciform structures are formed when the DNA sequence have
TLS Online TPP Program

#Question id: 14081

#Unit 1. Molecules and their Interaction Relevant to Biology

pKa of cytosine normally has a value of 4.2 but in hoogsteen triple base pairing this value changes to 
TLS Online TPP Program

#Question id: 14082

#Unit 1. Molecules and their Interaction Relevant to Biology

Conditions where hoogesteen triple base pairing occurs are
A. Presence of alternate GC repeats
B. Presence of only pyrimidines in a strand
C. Presence of only Purines in a strand
D. Acidic pH
E. Basic pH
Choose the option containing correct statement in it
TLS Online TPP Program

#Question id: 14083

#Unit 1. Molecules and their Interaction Relevant to Biology

What components are required for stabilizing DNA double helix
TLS Online TPP Program

#Question id: 14084

#Unit 1. Molecules and their Interaction Relevant to Biology

In DNA helix the angle at which the two sugars protrude from the base pairs (i.e., the angle between the glycosidic bonds) are 
A. 120
B. 36 
C. 240
D. 20
Choose the correct option?