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Quiz

Bio 110 Final: Chapter 11

Usuário eliminado 10 perguntas Atualizado em 13 dez 2017

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Perguntas do quiz (10)

  1. 1Why did researchers initially believe the genetic material was protein?
    1. AProteins are more biologically complex than DNA
    2. BProteins are found only in the nucleus, bu DNA is found in many areas of the cell
    3. CProteins are much larger molecules and can store more information than DNA
    4. Dall of the above
    5. Eboth a and c
  2. 2Considering the components of a nucleotide, what component is always different when comparing nucleotides in a DNA strand and in an RNA strand?
    1. APhosphate Group
    2. BPentose Sugar
    3. CNitrogenous Base
    4. Dboth b and c
    5. Ea, b, and c
  3. 3Which of the following equations id appropriate when considering DNA base composition?
    1. A%A+%T=%G+%C
    2. B%A=%G
    3. C%A=%G=%T=%C
    4. D%A + %G = %T + %C
  4. 4If the sequence of a segment of DNA is 5'-CGCAACTAC-3', what is the appropriate sequence for the opposite strand?
    1. A5'- GCGTTGATG-3'
    2. B3'-ATACCAGCA-5'
    3. C5'-ATACCAGCA-3'
    4. D3'-GCGTTGATG-5'
  5. 5Of the following statements, which is correct when considering the process of DNA replication?
    1. ANew DNA molecules are composed of two completely new strands
    2. BNew DNA molecules are composed of one strand from the old molecule and one new strand
    3. CNew DNA molecules are composed of strands that area mixture of sections from the old molecule and sections from that are new.
    4. Dnon of the above
  6. 6Meselson and Stahl were able to demonstrate semiconservative replication of E. Coli by
    1. Ausing radioactive isotopes of phosphorus to label the old strand and visually determining the relationship of old and new DNA strands.
    2. Busing different enzymes to eliminate old strands from DNA
    3. Cusing isotopes of nitrogen to label the DNA strands by density differences of the new molecules
    4. Dlabeling viral DNA before it was incorporated into a bacterial cell and visually determining the location of the DNA after centrifugation.
  7. 7During replication of a DNA molecule, the daughter strands are not produced in exactly the same manner. One strand, the leading strand, is made toward the replication fork, while the lagging strands is made in fragments in the opposite direction. This difference in the synthesis of the two strands is the result of which of the following?
    1. ADNA polymerase is not fast enough to make two leading strands of DNA
    2. BThe two template strands are antiparallel, and DNA polymerase makes DNA only in the 5' to 3' direction.
    3. CThe lagging strand is the result of DNA breakage due to UV light.
    4. DThe cell does not contain enough nucleotides to make two complete strands.
  8. 8In eukaryotic cells, chromosomes consist of
    1. ADNA and RNA
    2. BDNA only
    3. CRNA and proteins
    4. DDNA and proteins
    5. ERNA only
  9. 9A nucleosome is
    1. Aa dark-staining body composed of RNA and proteins found in the nucleus.
    2. Ba protein that helps organize the structure of chromosomes
    3. Canother word for chromosome
    4. Da structure composed of DNA wrapped around eight histones
    5. Ethe short arm of a chromosome
  10. 10The conversion of euchromatin into heterochromatin involves
    1. Athe formation of more nucleosomes
    2. Bthe formation of less nucleosomes
    3. Ca greater compaction of loop domains
    4. Da lesser compaction of loop domains
    5. Eboth a and c

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O usuário eliminou as informações de disciplina Quiz sobre Bio 110 Final: Chapter 11, criado por Usuário eliminado em 13-12-2017.
Autor
Usuário eliminado
Idioma
English
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11
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Criado em 13 dez 2017 · atualizado em 13 dez 2017

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