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

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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 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
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
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
Given the following DNA strand, what is its complementary mRNA? G G A C T G A T T
  1. CCTGACTAA
  2. CCUGACUAA
  3. GGACTGATT
  4. TTAGTCAGG
Grade 10 DNA, RNA, and Genetics
Alleles make up a                  .
  1. genotype
  2. phenotype
  3. dominance
  4. none of the above
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
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
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
                    is the process of making changes in the DNA code of living organisms.
  1. Cloning
  2. Inbreeding
  3. Genetic drift
  4. Genetic engineering
Grade 10 DNA, RNA, and Genetics
The passing on of characteristics from parents to offspring is
  1. genetics.
  2. heredity.
  3. fertilization.
  4. traits.
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
If a strand of mRNA is AUAGCCUU, then what is the corresponding anticodon?
  1. ATAGCCTT
  2. CACGCCAA
  3. UAUCGGAA
  4. GUGCAAUU
Grade 10 DNA, RNA, and Genetics
A sudden change in an organism's genes is
  1. biodiversity.
  2. mutation.
  3. symbiosis.
  4. taxonomy.
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
What enzyme is responsible for copying DNA's nucleic acid molecules?
  1. DNA polymerase
  2. amino acid
  3. RNA polymerase
  4. nucleosome
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.
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