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.
None. The chromosomes in an egg or sperm are only one chromosome from each pair. There are 23 single chromosomes in the egg and 23 single chromosomes in the sperm. When the tw â¦ o cells join together, the zygote has 23 PAIRS of chromosomes, or 46 chromosomes total.