Genetics

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Across
  1. 2. A thread-like structure of DNA and protein in the nucleus of most living cells that carries genetic information in the form of genes.
  2. 4. The set of genes and the specific alleles an organism possesses. It is the internal hereditary information.
  3. 7. A basic unit of heredity that is a specific section of DNA and contains the instructions for a specific trait.
  4. 8. One of two or more alternative versions of a gene that occupy the same position (locus) on a chromosome.
  5. 9. A change or alteration in the DNA sequence.
  6. 10. The observable characteristics of an organism, which are the physical or chemical expressions of its genes.
Down
  1. 1. An allele that produces a specific trait even if only one copy is inherited.
  2. 3. An allele that produces a specific trait only when two copies are inherited, one from each parent.
  3. 5. The process by which genetic factors are transmitted from one generation to the next.
  4. 6. A complex molecule containing the genetic information that makes up an organism.