Answer:
Active transport of calcium into the sarcoplasmic reticulum.
Explanation:
- The sarcoplasmic reticulum (SR) is a membrane-bound structure found within muscle cells that is similar to the endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca2+)
- In response to an action potential traveling along the t tubule, voltage-sensitive proteins change shape, opening calcium channels in the adjacent terminal cisterns of the sarcoplasmic reticulum.
Complete question:
You will find the pedigree in the attached files
Answer:
The correct option is C) <em>maternal mitochondrial mutations are inherited by </em><u><em>all of a mother's offspring</em></u><em>.</em>
Explanation:
Mitochondrial inheritance is one of the ways in which a disease or a trait might be inherited from the maternal line.
Most of the DNI is located in the nucleus, but there is also DNI in mitochondria. Sperm cells hardly carry mitochondria, so mitochondrial DNI is mostly inherited from the maternal side. If there exists any mutation in this DNI, the whole progeny of the mutated woman will be affected, as they will get the mother´s mitochondria carrying the mutation. On the contrary, if there is a man affected by a disease caused by a mutation in mitochondrial DNI, non of their descendants will get the disease.
<em>In the exposed pedigree, we can see that the mother is affected by the disease, but the couple had two daughters, and only one of them was affected, while the other one was not. This tells us that the mutation occurred on a nuclear chromosome. If the mutated allele was in mitochondria, both daughters would be affected. </em>
Answer:
D. ABSORPTION
Explanation:
Connective tissues are a type of tissue, made up of ground substance, fibers and cells.
Connecting tissues perform tissue support function using collagen, elastic, reticular fibers.
It is also involved in transport of substances using hemoglobin in blood for transport of nutrients and oxygen, insulating the body, storing of fuel.
They are many of them like birds and buterfly if only they could take pollan from the stigma to the stem
<span>Christmas in England is celebrated with food such as Turkey, potatoes and Brussels sprouts. The traditional Christmas menu is stuffed roast turkey prepared with natural turkey juices while baking, cranberry sauce, roast potatoes with butter and Brussels sprouts with vegetables. The dessert is a plum pudding with rum sauce. Also apple tarts with butter and various dried fruits.</span>
