Sequence Homology Versus Sequence Similarity and Identity MCQ

Test your knowledge with important Sequence Homology Versus Sequence Similarity and Identity MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Sequence Homology Versus Sequence Similarity and Identity MCQs on Bissoy. Bissoy App

• Sequence similarity and sequence identity are synonymous for nucleotide sequences and protein sequences as well.
  ক

  True

  খ

  False
• Shorter sequences require higher cutoffs for inferring homologous relationships than longer sequences.
  ক

  True

  খ

  False
• Sequence similarity can be quantified using ________ homology is a ______ statement.
  ক

  percentages, quantitative

  খ

  percentages, qualitative

  গ

  ratios, qualitative

  ঘ

  ratios, quantitative
• Sometimes, it is also possible that two sequences have derived from a common ancestor, but may have diverged to such an extent that the common ancestral relationships are not recognizable at the sequence level.
  ক

  True

  খ

  False
• If the two sequences share significant similarity, it is extremely ______ that the extensive similarity between the two sequences has been acquired randomly, meaning that the two sequences must have derived from a common evolutionary origin.
  ক

  unlikely

  খ

  possible

  গ

  likely

  ঘ

  relevant
• The degree of sequence variation in the alignment reveals evolutionary relatedness of different sequences, whereas the conservation between sequences reflects the changes that have occurred during evolution in the form of substitutions, insertions, and deletions.
  ক

  True

  খ

  False
• Which of the following is incorrect about evolution?
  ক

  The macromolecules can be considered molecular fossils that encode the history of millions of years of evolution

  খ

  The building blocks of these biological macromolecules, nucleotide bases, and amino acids form linear sequences that determine the primary structure of the molecules

  গ

  DNA and proteins are products of evolution

  ঘ

  The molecular sequences barely undergo changes
• Which of the following is incorrect regarding pair wise sequence alignment?
  ক

  The most fundamental process in this type of comparison is sequence alignment

  খ

  It is an important first step toward structural and functional analysis of newly determined sequences

  গ

  This is the process by which sequences are compared by searching for common character patterns and establishing residue-residue correspondence among related sequences

  ঘ

  It is the process of aligning multiple sequences