Answer:
a
Explanation:
the sperm cell donates most of the material in the cytoplasm to the zygote,including mitochondrial DNA
<span>Tight junctions, at the site of a tight junction, cells are held tightly against each other by many individual groups of tight junction proteins called claudins, each of which interacts with a partner group on the opposite cell membrane. For example, the tight junctions between the epithelial cells lining your bladder prevent urine from leaking out into the extracellular space.</span>
Answer:
Explanation:
Science (genetics, molecular biology, genomics) genes or gene products that are homologous (descended from a common ancestor) and are found in separate species due only to the speciation event (not to gene duplication).
Answer:
This is because of the difference in the structures on the apical surface to those on the basal surface.
Explanation:
Epithelia cells are the cells lining the surface of the body, body cavities and hollow organs. They are like barriers existing between the body and the external environment. Thereby, playing roles like protection, absorption, excretion etc.
Answer:
Each enzyme can catalyze many different biochemical reactions.
Explanation:
Simply put, an enzyme is a substance produced by a living organism that serves as a catalyst for a biochemical reaction. A catalyst speeds things up, not slows them down. Hope this helps; have a great day!