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.
(Answer #1). The bones in the human body as well as that of all other vertebrates are made primarily from calcium, or to be more specific calcium phosphates. Have you noticed when you see an ad on television for osteoporosis, they often talk about whether or not a person (especially in women) is getting enough calcium.Answer #2). Bones of the living body are not at all so dry, white and rigid, as we might think, seeing skeletons exposed in museums. Living bone is dark gray and is covered by a periosteum membrane, through which penetrate blood vessels and bones' nerves.