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Ninth Grade (Grade 9) DNA, RNA, and Genetics Questions

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Grade 9 DNA, RNA, and Genetics
The mRNA coding regions of most genes are interrupted by
  1. exons.
  2. introns.
  3. operons.
  4. proteins.
Grade 9 DNA, RNA, and Genetics
What is the main method for preparing a DNA fingerprint?
  1. GMP
  2. PCR
  3. RFLP
  4. RNA
Grade 9 DNA, RNA, and Genetics
Repeated patterns of meaningless codes in DNA are called
  1. codons.
  2. restriction enzymes.
  3. useless nucleotides.
  4. non-coding sections.
Grade 9 DNA, RNA, and Genetics
In cystic fibrosis, a change in a single gene causes the protein called CFTR to                          .
  1. become less soluble
  2. fold improperly
  3. destroy the cell membrane
  4. trasnport sodium ions
Grade 9 DNA, RNA, and Genetics
Where was Gregor Mendel from?
  1. Australia
  2. Austroeurasia
  3. Afghanistan
  4. Austria
Grade 9 DNA, RNA, and Genetics
Which statement describes the charge of DNA?
  1. It is neutral.
  2. It has no charge.
  3. It is positively charged.
  4. It is negatively charged.
Grade 9 DNA, RNA, and Genetics
Why does translation take place in the cytoplasm?
  1. Proteins are not found in the nucleus.
  2. Ribosomes are found on the rough endoplasmic reticulum.
  3. The amino acids for protein assembly are in the cytoplasm.
  4. All of the above.
Grade 9 DNA, RNA, and Genetics
Write the corresponding strand of mRNA from the DNA strand 3’-GAATTACA-5’
  1. CTTAATGT
  2. CUUAAUGU
  3. GAATTACA
  4. AGGCCGTG
Grade 9 DNA, RNA, and Genetics
Which is a starting material for PCR?
  1. RNA
  2. ribosomes
  3. free nucleotides
  4. restriction enzymes
Grade 9 DNA, RNA, and Genetics
Organisms that cause human disease have their own ecology.
  1. True
  2. False
Grade 9 DNA, RNA, and Genetics
What are homeobox genes?
  1. sex cells
  2. unnecessary genes
  3. genes caused by a mutation
  4. master regulators of development
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