Sexual reproduction allows for the reshuffling of genetic material inside and between humans during a generation, resulting in the possibility of a vast variety of progeny, each having a genetic composition distinct from its parents.
Genetic information is carried on chromosomes in the nuclei of reproductive cells called gametes, which eventually merge to produce a diploid zygote in most animals. The zygote grows into a new individual. And in sexual reproduction what is the source of the genetic material in a zygote?
Both the egg cell and the sperm cell are the source of genetic material in a zygote in sexual reproduction.
The genetic materials of both cells are shared.
The nuclei of both cells merge or fuse together during fertilization.
Both cells’ nuclei carry half of the individual’s genetic material, resulting in a complete set of genetic material for the zygote, half from the egg cell or mother and half from the father’s sperm cell.
The membranes of the egg and sperm fuse together to form a single cell. The egg and sperm begin to prepare their genetic material (DNA/chromosomes) for fusion. Finally, the genetic material comes together to form a zygote with one set of chromosomes.
Each parent contributes half of the genes inherited (at random) by the child in sexually reproducing organisms. Each chromosome has two copies, resulting in two alleles for each gene, one from each parent.
All plants and animals have cells that contain genetic material in the form of genes and chromosomes (usually in the nucleus)
nucleus of a cell
The majority of DNA is contained in the cell nucleus (also known as nuclear DNA), although a tiny quantity is also present in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are cellular structures that transform dietary energy into a form that cells can utilise.
https://bowie1983book.com/ will answer in sexual reproduction what is the source of the genetic material in a zygote.