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

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Grade 9 DNA, RNA, and Genetics
Which four nitrogenous bases are found in DNA?
  1. guanine, cytosine, adenine, thymine
  2. guanine, uracil, adenine, cytosine
  3. both a and b
  4. none of the above
Grade 9 DNA, RNA, and Genetics
Two alternative forms of a gene are called                .
  1. alleles
  2. characteristics
  3. genomes
  4. traits
Grade 9 DNA, RNA, and Genetics
What is a gene?
  1. Segment of DNA that codes for muscle size.
  2. Segment of DNA that codes for a specific trait or cell function.
  3. Segment of DNA that codes for bleached ends of hair color.
  4. Segment of DNA that codes for absolute muscle strength.
Grade 9 DNA, RNA, and Genetics
What describes the synthesis of RNA with a template of DNA?
  1. transcription
  2. translation
  3. photosynthesis
  4. respiration
Grade 9 DNA, RNA, and Genetics
All are characteristics of DNA EXCEPT
  1. having deoxyribose sugar.
  2. being single-stranded.
  3. being double-stranded.
  4. having four nitrogenous bases.
Grade 9 DNA, RNA, and Genetics
Which molecules are involved in protein synthesis?
  1. ribosomal RNA, transfer RNA, and mutagens
  2. messenger RNA, ribosomal RNA, and transfer RNA
  3. messenger RNA, introns, and ribosomal RNA
  4. transfer RNA, introns, and mutagens
Grade 9 DNA, RNA, and Genetics
Which kind of sugar is encountered in the nucleotides of DNA?
  1. deoxyribose
  2. ribose
  3. glucose
  4. none of the above
Grade 9 DNA, RNA, and Genetics
Which nitrogenous base is only found in RNA?
  1. uracil
  2. thymine
  3. guanine
  4. cytosine
Grade 9 DNA, RNA, and Genetics
Where are genes located?
  1. in the nucleus
  2. in the cytoplasm
  3. on the chromosomes
  4. on the ribosomes
Grade 9 DNA, RNA, and Genetics
The process by which RNA is made from DNA is called
  1. translation.
  2. transcription.
  3. replication.
  4. respiration.
Grade 9 DNA, RNA, and Genetics
The nucleotide sequence coding for an amino acid is a(n)
  1. base.
  2. codon.
  3. amine.
  4. serine.
Grade 9 DNA, RNA, and Genetics
The sugar in RNA is                    , and the sugar in DNA is                    .
  1. ribose; uracil
  2. ribose; phosphate
  3. deoxyribose; ribose
  4. ribose; deoxyribose
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