Question

If we have a baby, and we know who the mother is but we want to determine the father using gel electrophoresis, how will we know we have found the father?

Select one:

a. The father will match the baby at any band where the baby does not match the mother

b. The father will match the baby at any DNA band where the baby matches the mother

c. The father will not match any DNA bands

d. none of these answers

e. The father will match all of the DNA bands of the baby

Answer 1

a.The father will match the baby at any band where the baby does not match the mother.Baby contain two set of chromosomes one come from mother and other set of chromosomes come from father. Ova of mother fused with sperm of father and fertilization take place and two set of chromosomes fuse and form diploid zygote and diploid zygot developed into the embyo then baby. Baby contain half set of chromosomes from mother and half set from father.During restriction enzyme digestion, restriction site location in chromosomes are different in both mother and father and produce different DNA fragments.These DNA fragments run on gel electrophoresis to match the size with baby DNA framents by using technique restriction fragments length polymorphism.