Differentiate between configuration and conformation.
What will be an ideal response?
Answer: Configuration denotes the spatial arrangement of the atoms of a molecule that is conferred by
the presence of either double bonds, around which there is no freedom of rotation, or chiral centers, which give rise to stereoisomers. Configurational isomers can only be interconverted by temporarily breaking covalent bonds. Conformation refers to the spatial arrangement of substituent groups that,
without breaking any bonds, are free to assume different positions in space because of the freedom of bond rotation.
You might also like to view...
Give the bird-like and reptile-like features of Archaeopteryx? What will be an ideal response?
During a scientific expedition to an unexplored forest, you discover a new species of plant. The plant has net-veined leaves, flowers, and pollen grains with a single groove. Based on this information, you assign the plant to which of the following groups?
1.eudicots 2.gymnosperms 3.magnoliids 4.monocots
Which of the following statements is true?
a. The hydrogen bonding of cytosine to guanine is an example of complementary base pairing. b. In DNA, adenine always base pairs with guanine, and cytosine always base pairs with thymine. c. Each of the four nucleotides in a DNA molecule has the same nitrogen-containing base. d. When adenine base pairs with thymine, they are linked by three hydrogen bonds. e. None of these statements are true.
Which of the following factors does not interfere with the interpretation of evolutionary time using the molecular clock?
A) Horizontal gene transfer B) Differences in generation time C) Mutations due to background cosmic radiation D) Different selection pressures on different taxonomic groups E) Differences in DNA repair efficiency in different taxonomic groups