The sporophyte are produced before the gametophyte. Is is through the spores that sex cells are made up. The sporophyte contain the genetic material that will used to make the gametes. Therefore, the gametophyte will have half of the genetic material of the sporophyte.
The presence of lactose enables the lac operon genes to function.
Option B: during cellular division, the nuclear membrane dissolves and the DNA strands unwind.
Sometimes called molecular photocopying the polymerase chain reaction is a fast and inexpensive technique used to amplify copy small segments of DNA.
