one egg

Spermatogenesis vs Oogenesis

Egg and sperm cells have to have half the number of chromosomes as in body cells so when they combine to form a zygote, the zygote is diploid and has the correct number of chromosomes Egg and sperm cells are haploid to have double the number of chromosomes as a body cell.

Terms in this set (7) In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.

Explanation: Gametes are formed during the process of meiosis. Oogenesis is the process by which the female games are produced, which occurs in the ovary. The product of oogenesis is one mature egg from one primary oocyte; this occurs about once every four weeks in humans.

Oogenesis, in the human female reproductive system, growth process in which the primary egg cell (or ovum) becomes a mature ovum. These cells, known as the primary ova, number around 400,000. The primary ova remain dormant until just prior to ovulation, when an egg is released from the ovary.

The occurrence of Spermatogenesis is found inside the seminiferous tubules of a testis whereas oogenesis is present inside the ovary. The product form in spermatogenesis is sperm which is motile and the product form in an oogonium is ovum which is non-motile.

Spermatogenesis and Oogenesis have following similarities: 1)Both process occurs inside the gonads (testes and ovaries). 2)Both are completed in three phase ; multiplicative, growth and maturation phase.

The basic difference between spermatogenesis and oogenesis is that: one mature ovum is produced in oogenesis, and four mature sperm are produced in spermatogenesis. one mature ovum is produced in oogenesis, and four mature sperm are produced in spermatogenesis.

In spermatogenesis, mitosis occurs twice and meiosis once; in oogenesis, mitosis occurs once and meiosis twice. Spermatogenesis results in one mature sperm cell, whereas oogenesis results in four mature egg cells. Spermatogenesis results in four mature sperm cells, whereas oogenesis results in one mature egg cell.

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.

It is preceded by interphase, specifically the G phase of interphase. Both Meiosis I and II have the same number and arrangement of phases: prophase, metaphase, anaphase, and telophase….How is Meiosis I Different from Meiosis II?

In meiosis I homologous pairs align and are separated reducing the number of chromosomes by half. In meiosis II the dyads align and sister chromatids are separated.

haploid