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Tenth Grade (Grade 10) DNA, RNA, and Genetics Questions

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Grade 10 DNA, RNA, and Genetics
The molecule shown in the diagram shows what kind of structure?
DNA
  1. multi-strand
  2. ladder
  3. double helix
  4. double vertex
Grade 10 DNA, RNA, and Genetics
The base pair rule states that
  1. replication is semiconservative.
  2. A pairs with T, and G pairs with C.
  3. DNA is a double helix held together by hydrogen bonds.
  4. A pairs with G, and T pairs with C.
Grade 10 DNA, RNA, and Genetics
Grade 10 DNA, RNA, and Genetics
Which scientists are credited with discovering the physical structure of DNA?
  1. Watson and Crick
  2. Einstein and Crick
  3. Mendel and Watson
  4. Holmes and Watson
Grade 10 DNA, RNA, and Genetics
The physical characteristics of an organism are its
  1. genetics.
  2. heredity.
  3. phenotype.
  4. genotype.
Grade 10 DNA, RNA, and Genetics
What is the long name for DNA?
  1. deoxynucleic acid
  2. deoxyribonucleic acid
  3. denatured ribonucleic acid
  4. deoxoribonuclear acid
Grade 10 DNA, RNA, and Genetics
Why is DNA called the "blueprint of life"?
  1. It is like a fingerprint.
  2. It has a blue color.
  3. It contains the plans for building an organism.
  4. It can relay messages to other molecules.
Grade 10 DNA, RNA, and Genetics
What is the role of hydrogen bonds in the structure of DNA?
  1. code for proteins
  2. synthesize proteins
  3. separate the strands
  4. connect the base pairs
Grade 10 DNA, RNA, and Genetics
Varieties of purebred dogs are maintained by
  1. selective breeding.
  2. hybridization.
  3. inbreeding.
  4. genetic engineering.
Grade 10 DNA, RNA, and Genetics
Identify the term for the symbols BB, Bb, bB, and bb.
  1. genotype
  2. phenotype
  3. both a & b
  4. none of the above
Grade 10 DNA, RNA, and Genetics
Grade 10 DNA, RNA, and Genetics
Nucleotides of DNA are composed of three substances, namely
  1. calcium, sugar, and nitrogen.
  2. sugar, phosphate, and nitrogenous base.
  3. sugar, hydrogen, and nitrogen base.
  4. phosphate, calcium, and nitrogenous base.
Grade 10 DNA, RNA, and Genetics
Polygenic traits are
  1. controlled by two or more genes.
  2. controlled by one gene.
  3. controlled by polygons.
  4. controlled by at least three genes.
Grade 10 DNA, RNA, and Genetics
Grade 10 DNA, RNA, and Genetics
The passing of traits from parent to offspring is
  1. heredity.
  2. genes.
  3. alleles.
  4. genetics.
Grade 10 DNA, RNA, and Genetics
Each box inside a Punnett square represents one
  1. allele.
  2. parent.
  3. dominant trait.
  4. portion of offspring.
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