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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 a                .
  1. double ladder
  2. double helix
  3. nucleotide
  4. base pair
Grade 7 DNA, RNA, and Genetics
The letters "DNA" stand for                      .
  1. deoxyribonucleic acid
  2. ribonucleic acid
  3. deoxyribose sugar
  4. ribose sugar
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 10 DNA, RNA, and Genetics
What kind of structure is the molecule shown in the diagram?
DNA
  1. multi-strand
  2. ladder
  3. double helix
  4. double vertex
Grade 11 DNA, RNA, and Genetics
Which is the sequence of the transfer of information in most organisms?
  1. protein to DNA to RNA
  2. RNA to DNA to protein
  3. DNA to RNA to protein
  4. RNA to protein to DNA
Grade 4 DNA, RNA, and Genetics
A characteristic of a living thing is a(n)
  1. kingdom.
  2. fossil.
  3. organ.
  4. trait.
Grade 5 DNA, RNA, and Genetics
                is the passing down of traits from parents to offspring.
  1. Pollination
  2. Heredity
  3. Reproduction
Grade 7 DNA, RNA, and Genetics
DNA makes up our
  1. biosphere.
  2. organisms.
  3. cells.
  4. genes.
Grade 7 DNA, RNA, and Genetics
Freckles, eye color, and hair color are all physical traits.
  1. True
  2. False
Grade 5 DNA, RNA, and Genetics
The science of heredity is
  1. physics.
  2. genetics.
  3. enzymes.
  4. biology.
Grade 7 DNA, RNA, and Genetics
Attached earlobes are a characteristic seen when a person inherits a recessive allele, e, for this trait from each parent. Which of the following statements is correct?
  1. The genotype ee determines the phenotype.
  2. The phenotype ee determines the genotype.
  3. The genotype ee is an acquired trait.
  4. The phenotype ee is an acquired trait.
Grade 7 DNA, RNA, and Genetics
How many chromosomes does a human body cell have?
  1. 23
  2. 2
  3. 46
  4. 16
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