Answer: F- Matrix.
Explanation: The cells are embedded in an extra cellular matrix made of fibers and ground substance.
Answer: floating (vertebral) ribs
Explanation:
In a typical vertebrae there are 12 pairs of ribs. Each rib is a flattened bone with curvature. These ribs contributes to the wall of the thorax. The last 2 pairs of ribs are not connected with the sternum bone and it's associated cartilage. These ribs are called as the floating ribs. The floating ribs are attached with the vertebral column. These ribs are small and relatively delicate as compared to other pairs of ribs. These ribs include a cartilaginous tip.
Answer:
The most appropriate answer would be option 2.
In humans, the color of the eyes was thought as a simple Mendelian trait however, it has been found that the color of the eye follows polygenic inheritance, that is, it is determined by multiple genes.
A set of 15 genes is responsible for the color of the eyes. Two genes out of these 15 are OCA2 and HERC2 which are present on chromosome 15.
Thus we can conclude that eye colour is polygenic trait which does not follow Mendelian genetics.
