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DNA, RNA, and Genetics Questions - All Grades

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Grade 7 DNA, RNA, and Genetics
The twisted shape of DNA is called a                .
  1. double ladder
  2. double helix
  3. nucleotide
  4. base pair
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
The sugar for DNA is called                .
  1. Deoxyribose
  2. Ribose
  3. Sucrose
  4. None of these
Grade 7 DNA, RNA, and Genetics
DNA makes up our                .
  1. Biosphere
  2. Organisms
  3. Cells
  4. Genes
Grade 7 DNA, RNA, and Genetics
Each rung of the DNA ladder is made of                         .
  1. a pair of nitrogen bases
  2. a single nitrogen base
  3. three nitrogen bases
  4. four nitrogen bases
Grade 10 DNA, RNA, and Genetics
Varieties of purebred dogs are maintained by                     .
  1. selective breeding.
  2. hybridization.
  3. inbreeding.
  4. genetic engineering.
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
Grade 9 DNA, RNA, and Genetics
Grade 9 DNA, RNA, and Genetics
Grade 6 DNA, RNA, and Genetics
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