Genetics and Heredity

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Across
  1. 4. The number of parents in sexual reproduction
  2. 6. Two recessive alleles
  3. 8. An allele that will overpower a recessive allele is said to be ___.
  4. 9. A _____ letter would be used to represent a dominant allele.
  5. 11. The number of parents in asexual reproduction
  6. 13. The organelle in a cell where chromosomes are found
  7. 16. The base that pairs up with thymine.
  8. 17. The two letter combination of alleles
  9. 19. The base that pairs with cytosine
  10. 20. The physical expression of a trait based on genotype
  11. 21. A variation of a gene
Down
  1. 1. Two dominant alleles
  2. 2. The base that pairs with guanine
  3. 3. The shape of a DNA molecule
  4. 5. A dominant and a recessive allele
  5. 7. The base that pairs with adenine
  6. 9. Strands of tightly wound DNA
  7. 10. A ____ letter would be used to represent a recessive allele.
  8. 12. the molecule which stores genetic information
  9. 14. The percent chance of having offspring with a recessive trait if one parent is homozygous dominant
  10. 15. A section of DNA
  11. 18. A chart used to show the probability of traits of offspring