1. What is the difference between genotype and phenotype?

2. What is the difference between haploid and diploids?

3. What is the difference between a null mutation and a conditional mutation?

4. What are the two types of conditional mutations?

5. What is the difference between a genetic selection and a genetic screen?

6. What is the difference between complementation and recombination?

7. Rank the following mutations in order of reversion frequency: deletion, point mutation, double mutation.

8. Two phages with genotype x+ y – and x- y + are crossed. What are the genotypes of the possible recombinant types? Are any of them wild-type?