If sperm is a prokariotic cell...?

Question

If sperm is a prokariotic cell then it doesn't have a Nucleus. If it doesn't have a Nucleus then how does it transport DNA?

Answer 1

Sperm are eukaryotic. They transport DNA. Organisms do NOT have to have a nucleus in order to transport DNA, they can have it in a 'region'.

Answer 2

Cells that lack a membrane-bound nucleus are called prokaryotes (from the Greek meaning before nuclei). These cells have few internal structures that are distinguishable under a microscope. Cells in the monera kingdom such as bacteria and cyanobacteria (also known as blue-green algae) are prokaryotes.

Prokaryotic cells differ significantly from eukaryotic cells. They don't have a membrane-bound nucleus and instead of having chromosomal DNA, their genetic information is in a circular loop called a plasmid.

A spermatozoon or spermatozoan (pl. spermatozoa), from the ancient Greek σπέρμα (seed) and ζῷον (living being) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote is a single cell, with a complete set of chromosones, that normally develops into an embryo.

Sperm cells contribute half of the genetic information to the diploid offspring. In mammals, the sex of the offspring is determined by the sperm cells: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring (the ovum always provides an X chromosome). Sperm cells were first observed by a student of Antoni van Leeuwenhoek in 1677.

I can assure you that sperm have both a nucleus and a cell membrain... I think that your confusion may arise from the fact that prokaryotes resemble sperm, with a little 'tail'.

Answer 3

The problem with the statement resides with the term 'if sperm is a prokaryotic cell', which it isn't. Sperm has only one set of chromosomes (haploid) and these chromosomes are found inside the sperm cell nucleus.

Answer 4

Sperms are eukaryotic haploid cells.They contain a nucleus which is located in the 'head' region of the sperm!