People have 23 pairs of chromosomes. Parts of chromosomes are exchanged in fertilization. It is possible to take the mothers chromosomes and separate them. It is then possible to take babies...
If reading the DNA in the same direction ie 5' to 3' it would be ATC, however when bound to the complement it would sit in the reverse order - 3' to 5' and would read CTA.
A change in the nucleotide sequence of DNA is called a mutation. Mutations take several forms:
substitution: one base is replaced by another deletion: one or more nucleotides disappear from the...