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.
What Are Dentures Made Of? It's been a long time since tooth loss was managed using animal teeth and pieces of bone in their place. George Washington famously sported a set of dentures made from lead, human teeth, cow teeth and elephant ivory, according to Smithsonian Magazine.