Unit 11 - Genetics

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Across
  1. 8. The ________ is the genetic makeup of an organism (written in letters).
  2. 9. ____ is a physical characteristic where multiple genes determine the phenotype of a trait (ex. Human height).
  3. 10. _________ is the type of dominance where both versions of the trait are equally powerful and there is a blending of traits if the genotype is heterozygous (ex. Pink four o’clock flowers).
  4. 11. The ______ is the physical appearance of an organism.
  5. 12. ______ is the type of dominance where both versions of the trait are equally powerful and both traits are shown if the genotype is heterozygous (ex. Speckled chickens).
  6. 13. A(n) ________ genotype is a genotype with two different alleles for a trait, ex Aa.
  7. 14. A(n) __________ is a different form of a gene that is expressed in letters.
Down
  1. 1. Something like eye color is a(n) __________, passed from the parent to the offspring.
  2. 2. A(n) _______ allele is an allele that masks another allele (written in capital letters).
  3. 3. A(n) __________ is a trait that is either learned or came from the environment.
  4. 4. _____ are traits controlled by genes that are found on chromosome X or Y (ex. colorblindness).
  5. 5. ______ is when more than 2 alleles exist which determine the phenotype of a trait (ex. Eye color, Brown=B, hazel/green=B’ and blue/gray=b)
  6. 6. A(n) ______ genotype is a genotype with two of the same alleles for a trait, ex AA, aa.
  7. 7. A(n) _______allele is an allele that can be masked (written in lowercase letters).