TLS Online TPP Program

#Question id: 784


Which is not a difference between B-DNA and A-DNA?

#SCPH06 I Botany
  1. A-DNA forms under more dehydrating conditions than B-DNA.

  2. For polynucleotide strands containing the same number of nucleotides, the A-DNA strand will be shorter from end-to-end than the corresponding B-DNA

  3. Both are helical, but B-DNA is right-handed and A-DNA is left-handed.

  4. The planes of the nitrogenous bases are not perpendicular to the helix axis in A-DNA.

More Questions
TLS Online TPP Program

#Question id: 9167

#SCPH06 I Botany

If you conclude that vegetation at every point on Earth exactly resembles the predicted biome distribution in a climograph, then ________.

TLS Online TPP Program

#Question id: 9167

#SCPH28 | Zoology

If you conclude that vegetation at every point on Earth exactly resembles the predicted biome distribution in a climograph, then ________.

TLS Online TPP Program

#Question id: 9168

#SCPH06 I Botany

Which of the following statements best describes the interaction between fire and ecosystems?

TLS Online TPP Program

#Question id: 9168

#SCPH28 | Zoology

Which of the following statements best describes the interaction between fire and ecosystems?

TLS Online TPP Program

#Question id: 9169

#SCPH06 I Botany

In areas of permafrost, stands of black spruce are frequently observed in the landscape, while other tree species are noticeably absent. Often these stands are referred to as "drunken forests" because many of the black spruce often "lean over" (that is, they are displaced from their normal vertical alignment). What is the most likely explanation for the unusual growth of these forests in this marginal habitat?


TLS Online TPP Program

#Question id: 9169

#SCPH28 | Zoology

In areas of permafrost, stands of black spruce are frequently observed in the landscape, while other tree species are noticeably absent. Often these stands are referred to as "drunken forests" because many of the black spruce often "lean over" (that is, they are displaced from their normal vertical alignment). What is the most likely explanation for the unusual growth of these forests in this marginal habitat?