If you start with 5ng of template dna. how much would you have
after 10 cycles?

5.12μg of DNA

Explanation:

PCR is a method use to amplify DNA. It often require primers ( short sequence) nucleotides, heat stable polymerase enzymes, and thermocycler.

DNA strands are double by every cycle of PCR and it denoted by the formula 2^n  where n is the number of  cycle.

starting with 5ng,

the amount after 10 cycles = 2¹⁰ × 5 ng = 5.12μg of DNA

it’s lava came from an explosive eruption

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.