Pyrimidines are single-ringed nitrogenous bases that include Uracil, Cytosine, and Thymine.
If any of these three nitrogen bases are part of the multiple choice, then it should be the answer. I just took the test and for me it was Thymine.
Answer:
Peroxides
Explanation:
Peroxides are group of compounds that have the structure R-O-O-R. Peroxides have two oxygen atoms linked together by single covalent bond.
Hydrogen peroxide is most common peroxide and toxic byproduct of respiration. Hydrogen peroxide is involved in producing oxidative stress and thus producing damage to cellular components.
Peroxidases are enzymes that are found in wide range of organisms from bacteria to plants and animals. Most of these enzymes breakdown invloved in breakdown of hydrogen peroxide. Peroxidases act as antioxidant to reduce oxidative stress by cleavenging hydrogen peroxide radicles.
Answer:
Deep ocean currents Differences in water density, resulting from the variability of water temperature (thermo) and salinity (haline), also cause ocean currents. This process is known as thermohaline circulation.
Explanation:
Answer:
The answer is when the cell express different genes.
Explanation:
Cell differentiation is the process when a cell is changed from one cell type to an other and brings more complexity to the system. A cell before differentiation possess all the genes however their expression in turned off. When some external or internal factors trigger the gene expression it starts the cell differentiation. A multicellular organism undergoes several rounds of cell differentiation during its development. Although cell differentiation changes the size, shape and metabolic activity but the genetic makeup or DNA is never changed during cell differentiation.
I think the answer is <span> phenotypic traits</span>
<span>Hope this helped !!</span>
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