Answer:
b. Mutations that inactivate tumor suppressor genes are important in cancer.
Explanation:
Most cancers have inactivating mutations in one or more proteins that normally,Cancer can result from expression of mutant forms of these proteins: growth factors and mutation in only one of the two alleles is sufficient for induction of cancer, the cells from tumors caused by these viruses is near the c-myc gene.
Answer:
<u>In the mitochondrial matrix</u>
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Explanation:
The mitochondria is an organelle within the cytoplasm of the cell. It consists of an outer membrane, inner membrane, and matrix containing a gel-like substance. During aerobic respiration in mitochondria, cells break down sugars in the form of glucose into 
(carbon dioxide) and 
(water) to obtain energy in the form of ATP or adenosine triphosphate.
aerobic respiration:
C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
(glucose) (oxygen) (carbon dioxide) + (water)
The Kreb's cycle involves several enzymatic reactions, where pyruvate derivatives obtained from glycolysis, are reduced and oxidized to harvest energy as ATP.
Answer: C. Certain bacteria live within rocks kilometers below the Earth’s surface.
Explanation:
Bacteria are microscopic, usually single-celled living organisms that can be found in many environments. The live in practically anywhere on the planet because they are able to adapt to environmental changes. Bacteria regulate changes or modifications to their cell envelope in a coordinated way, allowing them to survive in different environments.
The main difference between bacteria and other cells is that bacteria are cells that do not contain a nucleus or other membrane-bound organelles.
These organisms can live in soil, the ocean and also inside the human gut. They can be dangerous, for example, when they cause infections they are able to injure different cells and tissues and compromise the immune system. On the other hand, most of the time they are beneficial, as in the process of fermentation such as in wine or yougurt, or helping with the digestion.
Answer:
<u>Two eggs</u>
Explanation:
Fraternal twins originate from the fertilization of two eggs. Fraternal twins are also termed as dizygotic twins which means "two cells". Every two twins in a set of three are dizygotic or fraternal. The babies arising by this phenomenon are not identical and can be of different sexes. Even the sperm fertilizing the two eggs in this phenomenon are seperate. Fraternal twins even do not share the same placenta, each of the them makes their own placenta.
Answer:
Glucose is a carbohydrate, and is the most important simple sugar in human metabolism. ... Glucose is one of the primary molecules which serve as energy sources for plants and animals. It is found in the sap of plants, and is found in the human bloodstream where it is referred to as "blood sugar"
Explanation:
