Across
- 3. there are ______ billion nucleotides in the human genome
- 8. _____ DNA is copied to create an identical strand of DNA
- 9. ______ mutation affects a single nucleotide, usually by substituting one nucleotide for another
- 11. ______ ribosomes "read" the mRNA and use the information to build proteins
- 13. form of a gene
- 14. having identical alleles for a gene
- 16. _____ mutation when the nucleotide changes and causes an amino acid to change
- 18. covered up by the dominate trait
- 19. DNA shape, double _____ structure
- 20. ______ mutation, the nucleotide changes creates/destroys a start or stop codon
Down
- 1. observable traits of an organism
- 2. ______ DNA is copied a mRNA, can travel outside the nucleus
- 4. scientific study or heredity
- 5. Amino ______ folds to form a protein
- 6. a length of DNA carrying the code for one feature
- 7. an allele that controls the phenotype regardless of what the other allele is
- 10. ______ mutation inserts or deletes one or more nucleotide
- 12. having different alleles for a gene
- 15. Three "letters" of DNA
- 17. ______ mutation is when the nucleotide changes but amino acid doesn't