|Hi, I am looking for someone to write an article on sex determination and development Paper must be at least 1500 words. , no plagiarized work! The human cell structure consists of cytoplasm, cytoskeleton, endoplasmic reticulum, Golgi apparatus, peroxisomes, and Lysosomes, Nucleus, Mitochondria, Ribosome, and Plasma membrane. The nucleus in the human body has 22 pairs of chromosomes, that belong to autosomes and a pair of sex chromosomes. This pair is always denoted as Y and X where a female contains two X-chromosomes while that of male contains an X and Y – chromosome. One of the X-chromosomes in a woman is activated in a form known as heterochromatin or sex chromatin and is the determinant of genetic gender on the basis of Barr body. The inactivation takes place in the stage known as blastocyst in a random manner on either X chromosome which may be material or paternal chromosome. In the presence of a Y- chromosome the development that takes place then is in the manhood form or masculine and in its absence the development occurs in feminism. What determines the gender is not gonosomes numbers but the absence or presence of Y-chromosome. The chromosome’s localized gene operates at its early stages in the development to be a guide known as a master gene in the Y chromosome in the determination of sex. (Chadwick & Goode, 2002) The Y- chromosome has a testis determining effect on gonads that are indifferent. This gene that is small is localized in the shorter arm and gets expressed in the supporting cells’ precursors. It then controls the entire number of genes found in the autosomes and on the X chromosomes. The sex development in mammals depends on the Y chromosomes. When there is the existence of Y chromosomes then a male develops while in the absence of Y chromosomes then the resultant development is a female. The chromosomes for sexual dimorphic in a male are always two which are designated as Y and X while that of the female involves .a pair of X chromosomes. A complete set of non-sex chromosomes is indicated by the use of A. Therefore the sperm produced by the male is indicated as AY and AX. The system results in the generation of a sex ratio or male offspring proportion at half if the XA and XY sperms are able to fertilize in an equal manner. This result is based on the provision of equally viable embryos known as AAYY and AAXX. (Bhattacharyya, 2012) In the context of the same pair of chromosome then the resultant product is a female while in the case of different chromosomes then the expected result if a male product. Therefore the determination of the sex of the product is based on the connection and attachment of the chromosomes from both males and females. The strength of the male chromosomes visa vie that of the female plays an important role in the sex determination in the mammals.