So what structure in the cell that contains the gene? The recessive allele is transmitted from parents to children?The nucleus of a cell that contains the chromosomes. Chromosomes are composed of DNA long elements are twisted back. At the beginning of the twentieth century, an American scientist named Walter Sutton have studied cells of the grasshopper. He would like to know are the cells that form gametes. Sutton focus on ways in which the chromosomes move during the formation of sperm and eggs. He assumed that the main chromosome is the key to finding out why the children had the same trait his parents. Sutton discovered that cells gametes of grasshoppers has the right to half the number of chromosomes found in the cells of its body. He also found the cell Zygote (fertilized egg) is formed when sperm and eggs combined with the same chromosome number with your parents. The chromosomes exist as pairs-a chromosome from the father and one from the mother. He realized the pair of alleles located on the chromosome pair. This idea is called the chromosome theory of heredity throughout. According to the genetic theory of chromosomes, genes are passed down from parents to offspring on chromosomes.Each human body cell contains 46 chromosomes form 23 pairs. Whether you only have 23 pairs of chromosomes, each cell in the body contains from 20000 to 25000 genes.
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