The whooping cough vaccine for children is very safe for your baby. The whooping cough vaccine for children (2 months through 6 years) is called DTaP vaccine. The DTaP vaccine combines protection against diphtheria, tetanus and whooping cough. Currently, there are 3 licensed formulations of the DTaP vaccine.
Human egg cells contain one set of 23 chromosomes. Because they contain half of the 46 chromosomes contained in body cells (2 sets of 23), the egg cells are said to be haploid. Human egg cells contain one set of 23 chromosomes. Because they contain half of the 46 chromosomes contained in body cells (2 sets of 23), the egg cells are said to be haploid.
Procedure. 1  The structure of an egg An egg is a reproductive cell from which a new organism develops. 2  This will occur only if the egg has been united with a male sperm cell (fertilized). 3  A chick will hatch from a fertile egg if the egg is incubated at 100.5 degrees F for 21 days.