Some examples of substrates used (also known as chromogens) are AEC (3-Amino-9-EthylCarbazole), or DAB (3,3'-Diaminobenzidine). Use of one of these reagents after exposure to the necessary enzyme (e.g., horseradish peroxidase conjugated to an antibody reagent) produces a positive immunoreaction product.
1. Know When You Ovulate after Childbirth. Most women experience an extended period of bleeding immediately after giving birth. The bleeding will get lighter and lighter, lasting about six weeks. It is extremely unlikely that a woman will become pregnant during this time, although it is not impossible.
Guppies how long does it take for them to get pregnant, and from there give birth? I bought 3 guppies 1 week and 2 days ago, 2 female and 1 male, the male has been mating with them non stop during this period and loves to sneak up on them to have some jiggy jiggy . how long till I should start seeing signs of pregnancy???