| A | B |
|---|
| Three Ways RNA and DNA differ | 1. RNA is single stranded 2. RNA pairs C-G;A-U 3. RNA is of Ribosome Sugar Group (not deoxyribose) |
| How does the origional double helix of DNA get unzipped? | Enzymes split apart base pairs and unwind the DNA double helix |
| After there are two templates (in replication) where do the nucleotides come from to make new strands | DNA polymerase matches the bases on the parent one by one with new bases of free nucleotides |
| How are the new backbones formed in new strands (in replication)? | stron sugar-phosphate bonds from between nucleo tides to form the backbone |
What must be the genotype of a family member with deafness (colored circle = deaf) Can a deaf family membe have more than one genotype? Why or why not?,  | dd, no, it must always be dd to be deaf |
| What are the phenotypes and genotypes of the individuals with question marks? How did you arrive at your conclusions?, | All question marks are hearing, possible genotypes in generation I #3 is Dh, DD; #4 Dh,DD; Generation II #1, Dh, DD |
| If carriers were deaf, would this pedigreee look different? Explain your answer., | Yes, deafness would be dominant |
| What is Incomplete Dominance | When heterozygous offspring show a phenotype that is between the phenotypes of the thwo heterozygous parents |
| What is codominance | when both alleles in the heterozygote express themselves fully (ie blood type |
