Two such people would be 'identical twins' . In every other case DNA is unique to each person.
Sister chromatids - two copies of the same DNA joined at the centromere.
recombinant DNA
When DNA contains parts from two or more organisms it is recombined. Recombinant DNA is often used in genetic engineering. A natural process of DNA recombination is called sexual reproduction.
True. Both nails and hair are made of a protein called keratin, and the DNA within the cells that produce these structures is the same. Thus, the DNA from your nails is the same as the DNA from your hair.
You have the same type of blood, but not the same DNA. That's why it's called a DNA test.
that no two people have the exact same DNA
The process of adding fragments of DNA to other DNA is called DNA ligation. This involves joining together two DNA fragments using an enzyme called DNA ligase, which helps to form a covalent bond between the DNA fragments.
DNA is called a double-helix because it consists of two strands that spiral around each other. A spiral shape is also called a helix, and there're two of them, so it's a double-helix.
The process by which a DNA molecule is copied is called DNA replication. During DNA replication, the two strands of the double helix separate and each strand serves as a template for the synthesis of a new complementary strand. This results in two identical copies of the DNA molecule.
the DNA in the hair is the same
They should be identical to the original DNA that underwent replication.
They should be identical to the original DNA that underwent replication.