1.  After two replications of a single DNA molecule, how many of the 4 ìoffspringî DNA molecules contain one strand of the original DNA?
a.  0    b.  1        c.  2         d.  3     e.  4

2. Mendelís Theory of   ?      explains how offspring receive one allele from each parent.
a. Independent Assortment        b. One Allele         c.  Diploidy        d. Genetics        e.  Segregation

3.  Which nucleotide is NOT part of DNA?
a.  guanine       b.  cytosine        c.  pyrimidine       d.  thymine        e.  uracil

4.  The process of making RNA from DNA is called
a.  transcription       b.  replication        c.  repair         d.  translation         e.  mutation

5.  If one strand of DNA has a purine, the opposite strand would have a      ?       in the same position.
a.  guanine         b.  cytosine          c.  pyrimidine        d.  thymine           e.  uracil

6.  During DNA replication, occasionally the incorrect nucleotide is placed in the new strand and remains in the new molecule of DNA.  This process is called?
a.  transcription              b.  replication             c.  repair               d.  translation              e.  mutation

7.  A woman with detached earlobes has a child with a man that has detached earlobes.  The childís earlobes are attached.  The allele for detached earlobes (A) is dominant.  What are the genotypes of the parents?
a.  AA x aa          b.  Aa x aa          c.  Aa   x    Aa               d.  aa   x   aa                 e.  AA   x   AA

8.  If the sequence of one DNA strand is AAACCGTAT the the complementary mRNA would be?
a.  TTTGGCATA              b.  CCCAATGCG               c.  UUUGGCATA               d.  UUUGGCAUA

9.  Suppose that brown hair in dogs is dominant over yellow.  You have a brown-haired dog that you must know the genotype of for breeding purposes.  How would you figure out her genotype?
a.  cross her with another brown-haired dog and count the ratio of brown and yellow haired puppies
b.  cross her with a yellow-haired dog and count the ratio of brown and yellow puppies
c.  perform a testcross
d.  both a and c
e.  both b and c

10.  All mRNA transcripts begin with which codon?  (hint:  you may want to look at the genetic code)
a.  TTU        b.  AAG      c.  CGC      d.  ATA       e.  AUG

See the answers