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.
A human body cell would have 46 chromosomes. Since a human egg cell is a reproductive cell (sex cell), it would contain only half the number of chromosomes as a body cell. Thus, a human egg cell would have 23 chromosomes. A sex cell has half the number of chromosomes for a good reason. When two sex cells reproduce, they combine to form double the number of chromosomes. So when two cells with 23 chromosomes each reproduce, the offspring would have 46 chromosomes.
The sperm cell and the egg cell that come together to form the zygote each contain half the normal amount of DNA. There are 46 chromosomes in a typical human cell. The sperm and the egg each contain only 23 - one copy of chromosomes 1 through 22 plus an X or a Y. Egg cells can only contain an X but the sperm can contain an X or a Y. East Haven High School in CT (10th grade student)