News. The invention of the Polymerase Chain Reaction (PCR) radically changed biology. The technique was considered so important that the Nobel Prize was awarded to its inventor, Kary Mullis, in 1993.Thanks to this technique, very small samples of DNA (from as little as a single cell) can be analyzed.ews. The invention of the Polymerase Chain Reaction (PCR) radically changed biology. The technique was considered so important that the Nobel Prize was awarded to its inventor, Kary Mullis, in 1993.
The smallest prime number, according to primality as defined by modern mathematicians, is 2. To be prime, a number must be divisible only by itself and 1. All other numbers are known as composites.
A prime number is a number that has no factors other than itself and 1, but 1 itself is not regarded as a prime number. The prime numbers below 30 are thus 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29. They can be said to have no prime factorization. prime number is a number that has no factors other than itself and 1, but 1 itself is not regarded as a prime number. The prime numbers below 30 are thus 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29. They can be said to have no prime factorization.