Answer:
Keratin is an important protein in the epidermis. Keratin has two main functions: to adhere cells to each other and to form a protective layer on the outside of the skin. In epithelial cells, keratin proteins inside the cell attach to proteins called desmosomes on the surface.
Explanation:
<span>It is true, dural sinuses, cerebral sinuses, or cranial sinuses are venous channels found between the endosteal and meningeal layers of dura mater in the brain. They receive blood from internal and external veins of the brain,and receive cerebrospinal fluid (CSF) from the subarachnoid space via arachnoid granulations, and mainly empty in the internal jugular vein</span>
The answer is A. Man-made
Answer:
2 (tall) :2 (short) or 1:1.
Explanation:
Mendel is known as the father of genetics. He explains the laws of segregation and the laws of independent assortment by working on the pea plant <em>Pisum sativum.</em>
The height of tall pea plant be T and the short pea plant be t. The cross between heterozygous dominant tall pea plant (Tt ) and short pea plant (tt) is as follows:
Parents Tt × tt
The progeny obtained from the cross are Tt, tt, Tt and tt.
Two tall pea plants and two short pea plants.
Thus, the phenotype ratio is 1:1.