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DNA, RNA, and Genetics Questions - All Grades

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Grade 8 DNA, RNA, and Genetics
A genotype with the alleles AA or Aa is
  1. dominant.
  2. recessive.
  3. Punnett.
  4. evolved.
Grade 7 DNA, RNA, and Genetics
If a plant has two of the same alleles for red flowers, then it can be described as
  1. homozygous.
  2. heterozygous.
  3. codominant.
  4. none of the above
Grade 6 DNA, RNA, and Genetics
What is the study of how traits are passed from parents to offspring?
  1. heredity
  2. variation
  3. genetics
  4. genes
Grade 12 DNA, RNA, and Genetics
Protein-building information is carried from the nucleus to the ribosomes by
  1. DNA.
  2. endoplasmic reticulum.
  3. vacuoles.
  4. RNA.
Grade 6 DNA, RNA, and Genetics
A dominant allele is expressed by using a small letter.
  1. True
  2. False
Grade 7 DNA, RNA, and Genetics
What are the nitrogen base pairs in a DNA molecule?
  1. Adenine pairs with thymine; guanine pairs with cytosine.
  2. Guanine pairs with thymine; adenine pairs with cytosine.
  3. Adenine pairs with guanine; thymine pairs with cytosine.
Grade 7 DNA, RNA, and Genetics
DNA is organized into X-shaped structures of                  .
  1. lipids
  2. chromosomes
  3. chloroplasts
  4. none of the above
Grade 8 DNA, RNA, and Genetics
What are chromosomes?
  1. coils of DNA and protein molecules
  2. process in which DNA is copied
Grade 10 DNA, RNA, and Genetics
The physical characteristics of an organism are its
  1. genetics.
  2. heredity.
  3. phenotype.
  4. genotype.
Grade 7 DNA, RNA, and Genetics
Which nitrogen base is NOT found in RNA?
  1. adenine
  2. cytosine
  3. guanine
  4. thymine
  5. uracil
Grade 9 DNA, RNA, and Genetics
The macromolecule involved in controlling a cell's activity that stores and moves genetic information is
  1. a carbohydrate.
  2. a nucleic acid.
  3. water.
  4. glucose.
Grade 8 DNA, RNA, and Genetics
Which term best describes the structure of DNA?
  1. tetrahedron
  2. double helix
  3. single strand
  4. triple octagon
Grade 5 DNA, RNA, and Genetics
Offspring, or young, from parents that are different from each other are
  1. adaptations.
  2. mimicry.
  3. coloration.
  4. hybrids.
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