Each gene has a specific location (locus) on a chromosome and may come in several forms (alleles). genotype The actual genes for a trait present in an individual. genotypic ratio The expected numbers of different genotypes produced by a particular cross.
Bones are made from calcium. A typical bone has an outer layer of hard or compact bone, which is very strong, dense and tough. Inside this is a layer of spongy bone, which is â¦ like honeycomb, lighter and slightly flexible.
Bone Tumors. Bones are made of several different cell types, including cartilage, blood cells, fat, fibrous connective tissue and the calcium-depositing bone cells (osteoblasts). Any of these cell types are capable of developing into a tumor.