Question

What would be the ratio of chromosome number between an egg and its zygote? How is the sperm genetically different from the egg?

Answer 1

A chromosome is a long DNA molecule that contains part or all of an organism's genetic material. Most eukaryotic chromosomes contain histones, which, with the help of chaperone proteins, bind to and condense the DNA molecule to keep it intact.

complete answer:
A zygote is a eukaryotic cell formed when two gametes fertilize each other. The genome of the zygote is made up of the DNA from each gamete and contains all of the genetic information needed to create a new individual.
The zygote is the earliest developmental stage in multicellular organisms. A zygote is formed when an egg cell is fertilized by a sperm cell in humans and most other anisogamous organisms. The zygote can divide asexually through mitosis in single-celled organisms to produce identical offspring.
In anisogamous forms of sexual reproduction, sperm is the male reproductive cell or gamete. Animals produce spermatozoa, which are motile sperm with a flagellum tail, whereas red algae and fungi produce spermatia, which are non-motile sperm cells.
The chromosome number ratio between the egg and its zygote is 1:2. A female gamete with a haploid number of chromosomes is called an egg. It fuses with a male gamete (which also has a haploid number of chromosomes) during fertilization to form a zygote with a diploid number of chromosomes. In terms of the nature of the sex chromosome, sperm and eggs are genetically distinct. X or Y-chromosome whereas an egg will always have an X-chromosome.

Note:
Sperm cells are unable to divide and have a short lifespan, but after fusing with egg cells during fertilization, a new organism emerges, beginning as a totipotent zygote. Human sperm cells are haploid, which means that their 23 chromosomes can join with the 23 chromosomes of the female egg to form a diploid cell with 46 paired chromosomes. Sperm is stored in the epididymis and released from it in mammals.