Genome Anatomy MCQ

Test your knowledge with important Genome Anatomy MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Genome Anatomy MCQs at Bissoy

• The intron structure of genes in a particular eukaryote is used for predicting the location of genes of genome sequences.
  ক

  True

  খ

  False
• Introns can remain at a corresponding position in a eukaryotic gene for long periods of evolutionary time.
  ক

  True

  খ

  False
• Eukaryotic genes that encode proteins are interrupted by ________
  ক

  exons of varying length and number

  খ

  introns of varying length and number

  গ

  exons of varying length and but same number

  ঘ

  introns of varying number but same length
• Which of the given features is incorrect?
  ক

  TEs are present in few particular chromosomes

  খ

  TEs are present in all of the chromosomes

  গ

  Abundance of TEs varies

  ঘ

  TEs can comprise a large portion of the genomes of higher eukaryotes, both plants and animals
• A third category of TEs has features of both class I and class II TEs. These miniature, inverted repeat TEs (MITES) are ________ in length.
  ক

  400 bp

  খ

  500 Mbp

  গ

  300 kbp

  ঘ

  600 kbp
• The human genome contains about _________ of class II of elements that probably predate human evolution (Smit 1996).
  ক

  2,000 copies

  খ

  200,000 copies

  গ

  2,00,00,000 copies

  ঘ

  20,00,000 copies
• Vertebrate chromosomes have long (>300 kb) regions of distinct GC richness, repeat content, and gene density, designated isochores in a model of genome organization proposing that genomes are made up of distinct segments of unique composition.
  ক

  True

  খ

  regions of distinct GC richness, repeat content, and gene density, designated isochores in a model of genome organization proposing that genomes are made up of distinct segments of unique composition. a) True [ False
• _____ of the human genome comprises one particular family of the SINE Element, designated Alu (1.2 million copies).
  ক

  10%

  খ

  20%

  গ

  60%

  ঘ

  40%
• The retroposons include short _________ interspersed nuclear elements (SINES).
  ক

  90–4000 bp long

  খ

  80–500 Mbp long

  গ

  80–300 bp long

  ঘ

  100–3000 bp long
• More than _____ of the human genome consists of interspersed repetitive sequences derived from TEs (transposable elements).
  ক

  one-third

  খ

  one-eighth

  গ

  one-fifth

  ঘ

  half
• (Transposable Elements) TEs have the potential to _____ in number until they comprise a ____ proportion of the genome sequence.
  ক

  decrease, large

  খ

  decrease, micro

  গ

  increase, micro

  ঘ

  increase, large
• ______ can comprise a large proportion of the eukaryotic genome as ______
  ক

  transposable elements, single copy sequences

  খ

  transposable elements, repetitive sequences

  গ

  macrosatellite DNA elements, single copy sequences

  ঘ

  satellite DNA elements, single copy sequences
• Genes that are transcribed are located in the ______
  ক

  euchromatin

  খ

  heterochromatin

  গ

  heterochromatin and euchromatin

  ঘ

  tightly bound DNA
• In nondividing cells, a mixture of lightly and darkly stained chromosomal regions called euchromatin and heterochromatin respectively, are observed.
  ক

  True

  খ

  False
• Minisatellites are made up of repeat units of up to ____ and microsatellites compose of repeat units of ____ or less.
  ক

  25 bp, 10 bp

  খ

  70 bp, 6 bp

  গ

  80 bp, 9 bp

  ঘ

  25 bp, 4 bp
• Most of the repetitive DNA is found near the open ends of chromosomes.
  ক

  True

  খ

  False
• The sequences of satellite DNA fall into different types, each with a different repeat unit of length _____
  ক

  5–400 Mbp

  খ

  3–300 kbp

  গ

  6–900 Mbp

  ঘ

  5–200 bp
• Prokaryotic genomes commonly have tandem repeats of sequences and include introns in protein-coding genes.
  ক

  True

  খ

  False
• Telomeres hold newly replicated daughter chromosomes together.
  ক

  True

  খ

  False
• Computational resources can facilitate the analysis of bacterial genomes.
  ক

  True

  খ

  False
• In examining the results of analysis, it is important to look for the method used the statistical significance of the result, and the overall degree of confidence in the alignments.
  ক

  True

  খ

  False
• Which of the given is wrongly matched?
  ক

  Escherichia coli – Bacteria

  খ

  Methanococcus jannaschii – Archaea

  গ

  Synechocystis sp. – Archaea

  ঘ

  Aquifex aeolicus – Bacteria
• A simple way to retrieve sequences of viral and other extra-chromosomal genetic elements such as organelles is through the National Center for Biotechnology Information (NCBI).
  ক

  True

  খ

  False
• Annotation involves identifying open reading frames in the genome sequence.
  ক

  True

  খ

  False
• Analysis of the ribosomal RNA molecules of prokaryotes and eukaryotes had led to the prediction of three main branches in the tree of life.
  ক

  True

  খ

  False
• After sequencing the Hemophilus genome and Organisms were selected for sequencing based on minimum criteria. Which of the following is not one of them?
  ক

  They had been subjected to a good deal of biological analysis

  খ

  They were model eukaryotic organisms

  গ

  They were an important human pathogen, e.g., Mycobacterium tuberculosis (tuberculosis)

  ঘ

  They were of phylogenetic interest
• While sequencing of The first bacterial genome—Approximately ____ of the ____ predicted genes matched genes of another species, the bacterial species E. coli K-12 that had been the subject of many years of genetic and biochemical research.
  ক

  46%, 1500

  খ

  58%, 1496

  গ

  72%, 1743

  ঘ

  58%, 1743
• While sequencing of the first bacterial genome–A large number of random overlapping fragments were sequenced and then a consensus sequence of the entire ______ chromosome of Hemophilus was assembled by computer.
  ক

  8.6 x 109 bp

  খ

  1.8 x 106 bp

  গ

  6.9 x 105 bp

  ঘ

  1.8 x 104 bp
• The first bacterial genome to be sequenced was that of ________ a mild human pathogen.
  ক

  Hemophilus influenzae

  খ

  Lactobacillus

  গ

  Vibrio cholarae

  ঘ

  Clostridium botulinum
• The chromosomes comprised linear DNA molecules in a tightly compact form that was wrapped around protein complexes, called the nucleosome.
  ক

  True

  খ

  False