Q. 1. Alleles might be explained as:

a. similar forms of two different loci
b. alike forms of two different genes
c. Alternative forms of a single gene
d. Alternative forms of two different loci

2. A mutation which produces a change from wild type to an abnormal phenotype is called as:
a. a back mutation

b. A forward mutation
c. A prototrophic mutation
d. A deletion

3. Normal allele A is mutated to recessive allele
a. The a allele phenotype would be expressed in one of the following individuals:

a. Aa
b. aa
c. AA
d. aA

4. A transition base substitution mutation occurs for cytosine at a C = G site in a DNA strand. After DNA replication the base pair at this site will be:

a. G = C
b. T = A
c. A = T
d. G = T

5. A 2-amino-purine can be incorporated into DNA in place of adenine. It can pair equally well with thymine or cytosine. What type of mutation do you expect it to cause?

a. Transversion
b. Deletion
c. Addition
d. Transition
e. Transversions and transitions
6. The first line below is t