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Seventh Grade (Grade 7) DNA, RNA, and Genetics Questions

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Grade 7 DNA, RNA, and Genetics
The twisted shape of DNA is a
  1. double ladder.
  2. double helix.
  3. nucleotide.
  4. base pair.
Grade 7 DNA, RNA, and Genetics
DNA makes up our
  1. biosphere.
  2. organisms.
  3. cells.
  4. genes.
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
The sugar in DNA is
  1. deoxyribose.
  2. ribose.
  3. sucrose.
  4. glucose.
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
The letters "DNA" stand for
  1. deoxyribonucleic acid.
  2. ribonucleic acid.
  3. deoxyribose sugar.
  4. ribose sugar.
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
What is the study of heredity?
  1. ecology
  2. genetics
  3. chromosomes
  4. cosmetology
Grade 7 DNA, RNA, and Genetics
Grade 7 DNA, RNA, and Genetics
When cells have paired chromosomes, they are
  1. haploid.
  2. diploid.
  3. singular.
  4. plural.
Grade 7 DNA, RNA, and Genetics
What would the complementary DNA strand be for the DNA sequence AGT-CGA-CCG-AAT?
  1. ATC-GCT-TTA-GCG
  2. TCA-GCT-GGC-TTA
  3. GGG-CGC-TTA-TAG
  4. TAG-TAC-GAG-TTC
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.
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