A protein's secondary structure is characterized by beta pleated sheets and alpha helices; the primary structure of a protein is the order of amino acids in a polypeptide, which is coded for the DNA of a gene. the secondary structure itself results from Hydrogen bonds, where the electronegative nitrogen and O2 atoms impart the hydrogen atoms with a semi positive charge.
The appropriate answer for this one is C. Cancer cells divide uncontrollably and therefore the cell cycle would be continuously divide. To add, there is a term known as terminally differentiated cells. These cells that never enter the cell cycle again, meaning they stay in G0 and never divide. However, some cells can be triggered to depart G0 and re-enter G1, which permits them to divide again.
here is the awnsers hope it helps you...
Both Aristotle and Linnaeus classified animals and plants, considering where the species lived. However, Linnaeus delved further into classifying organisms looking at their morphology, with an ordered subset of the organism's class divided into five kingdoms: class, order, species, genus, and variety. The process of this classification is called Taxonomy, however, modern scholars also consider the evolutionary history of a species, in the classification process.
Answer:
Saturated fats/ solid fats
Explanation:
Vegetable oils amongst other unsaturated oils are liquids at room temperature while saturated oils are solids or spreadable at room temperature.
Industrially, vegetable oils are hydrogenated; hydrogenation is the process of adding hydrogen to an unsaturated compound to make it saturated. This then makes these hydrogenated vegetable oil, saturated which makes them solids as earlier stated, they are also called cis - fatty acids.
Trans - fatty acids as well are also unsaturated oils which are hydrogenated industrially to give saturated fatty acids which are called artificial tran-fats. They are found in most commonly found in baked and fried goods.
Answer:
d. transcription factors
Explanation:
Transcription factors are the proteins present in cells that are involved in the regulation of gene expression. The transcription factors may increase or decrease the expression of a gene. Therefore, a transcription factor may serve as an activator or repressor for a gene. These proteins bind to a regulatory sequence present near or within a gene, interact with RNA polymerase or other transcription factors and thereby, affect the transcription initiation.
Since binding of dioxin to certain proteins alter the pattern of gene expression in the cells, these proteins are the transcription factors. For instance, dioxin may bind to a transcription factor and up-regulate the expression of genes which in turn regulate the cell division.
