Such a group is called a functional group. The âï»¿OH functional group is called a phenol (pronounced fee-nol) group if it is joined to a benzene ring. The same word, phenol, is also used as the name of the compound you made (2.3) consisting of a benzene ring carrying an âï»¿OH group and no other substituent groups.t is a carboxylic acid group and has a whole set of chemical properties that make it different to the âï»¿OH group. To simplify writing this functional group it is often abbreviated to âï»¿COOH or âï»¿CO 2 H. Some people refer to it as a âcooâ (rhymes with blue) group in conversation.
In mitosis, the end product is two cells: the original parent cell and a new, genetically identical daughter cell. Meiosis is more complex and goes through additional phases to create four genetically different haploid cells which then have the potential to combine and form a new, genetically diverse diploid offspring.
Meiosis. Meiosis is used to make special cells-sperm cells and egg cells-that have half the normal number of chromosomes. It reduces the number from 23 pairs of chromosomes to 23 single chromosomes. The cell copies its chromosomes, but then separates the 23 pairs to ensure that each daughter cell has only one copy of each chromosome. A second division that divides each daughter cell again to produce four daughter cells.