a single cell has 250,000 genes and their are over a billion cells
The egg cell or ovum contains genes contributed only by the mother. During fertilization, the egg cell combines with a sperm cell, which contributes genes from the father, to form a zygote with genetic material from both parents.
The y chromosome, which only contains a few hundred genes.
Genes are located in the nucleus of a cell, specifically within the DNA molecules found in the chromosomes. Genes are segments of DNA that contain instructions for building proteins, which are essential for the structure and function of cells.
Genes are stored in the cell's nucleus in structures called chromosomes. Each chromosome contains long strands of DNA, which are made up of genes that carry the instructions for making proteins and controlling cell functions.
That depends on the gene: some genes have only a few alleles, some genes have hundreds or even thousands of alleles.
Different genes are turned on or off in the different cell types as a result of specialization
The egg cell or ovum contains genes contributed only by the mother. During fertilization, the egg cell combines with a sperm cell, which contributes genes from the father, to form a zygote with genetic material from both parents.
the sperm cell
The y chromosome, which only contains a few hundred genes.
DNA technology will transfer bacteria genes from cell to cell.
That depends on the gene: some genes have only a few alleles, some genes have hundreds or even thousands of alleles.
A person can only inherit sickle-cell genes if some of their ancestors came from certain regions in Africa where the inhabitants carry sickle-cell genes. A person with one sickle-cell gene has sickle-cell trait, a milder problem. If both father and mother pass on sickle-cell genes, the child, with two genes, will have sickle-cell disease.
Multipotent
A cell containing a single set of chromosomes and therefore only a single set of genes is known as a haploid cell. Haploid cells have one set of chromosomes, which is half the number of chromosomes found in diploid cells.
Genes can be found in chromosomes. The cell nucleus of almost every cell contains chromosomes and genes. They contain the DNA and the gene shows as a section of the DNA.
The number of genes varies from chromosome to chromosome and the number of chromosomes varies from species to species (from as few as 1 single chromosome per cell to as many 30,000 chromosome pairs per cell). Human cells have 23 chromosome pairs per cell.
what is the first living cell to get all its genes identified?