Choose the PCR primer pair that will amplify the breakpoint of a deletion of the segment of DNA between lines 1and 2. 5' 3'
3' 5'
a. 5- AGCTAAGGCCTTTCGA and 5'-CCACGGGTACCTATAA
b. 5'- TCGATTCCGGAAAGCT and 5'-ACGTCCCGGGAAACTA
c. 5- TCGATTCCGGAAAGCT and 5'-CCACGGGTACCTATAA
d. 5'- TCGATTCCGGAAAGCT and 5'- GGTGCCCATGGATATT
e. 5' - GGTGCCCATGGATATT and 5' ACCTAGGTAAGCGCCG

a. 5- AGCTAAGGCCTTTCGA and 5'-CCACGGGTACCTATAA

Explanation:

The Polymerase Chain Reaction (PCR) primers are short nucleotide sequences (composed of approximately 20  nucleotides in size) flanking a target sequence that is amplified during PCR reaction. These primers bind to the DNA template by means of complementary base pairing in order to make billions of copies of a target DNA region, which is then visualized as a band by electrophoresis. In this case, PCR primers from the item a- (i.e., AGCTAAGGCCTTTCGA and CCACGGGTACCTATAA) will bind to the DNA template of lines 1 and 2 in order to amplify a continuous region:

Schematically:

The Foward primer AGCTAAGGCCTTTCGA binds by complementary base pairing:

5'_(TCGATTCCGGAAAGCT)_3'

The Reverse primer CCACGGGTACCTATAA binds by reverse complementary base pairing:

3'_(TTATAGGTACCCGTGG)_5'

answer: 4

explanation: 8

the real answer is b. scintillation counter