Cell Division and Reproduction

Mitosis is a type of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the parent cell.

During prophase, the chromosomes become visible and are duplicated, resulting in two identical copies of each chromosome.

Spindle fibers are responsible for separating the chromosomes and moving them to opposite poles of the cell during mitosis.

Meiosis is a type of cell division that results in four daughter cells, each with half the number of chromosomes as the parent cell, promoting genetic variation.

Meiosis consists of two rounds of division, meiosis I and meiosis II, resulting in four daughter cells.

During anaphase I of meiosis, the homologous chromosomes separate and move to opposite poles of the cell.

Crossing over during meiosis leads to genetic variation by exchanging genetic material between homologous chromosomes.

Sexual reproduction involves the fusion of two gametes, a sperm and an egg, resulting in genetic variation.

The male gamete, typically a sperm, fertilizes the female gamete, the egg, during sexual reproduction.

Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud on the parent organism.

The placenta facilitates the exchange of nutrients, oxygen, and waste products between the mother and the developing fetus.

Luteinizing Hormone (LH) triggers ovulation, the release of a mature egg from the ovary, during the menstrual cycle.

Implantation is the process by which a fertilized egg attaches to the lining of the uterus, marking the beginning of pregnancy.

Progesterone is essential for maintaining the corpus luteum and supporting the early stages of pregnancy by preparing the uterus for implantation and nourishing the developing embryo.

Parturition is the process of giving birth, during which the fetus is expelled from the uterus through the birth canal.