<span>a. </span>Cut out a piece of DNA from a DNA
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molecule</span><span>
How does molecular genetics add to our understanding of genes is by simply </span>studying them. <span> Molecular genetics is scientific study of composition of genes. This field is a subcategory of biology and heredity which is responsible for unearthing and delving the anatomy and physiology of the genes. </span>This field helps us to understand and find evidence in the compounds, substances and elements found and synthesized in our genes and what contains in our nucleic acides –RNA and DNA –framework of our chromosomes. <span>And also the origin and history of how genes came to be. These are codes and like-signals that makes us who we are in a macro-perspective.<span>
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Answer:
The correct answers are-
a. Its metabolic demands increase.
b. It's surface area-to-volume ratio decreases.
c. Its ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands decreases.
Explanation:
As the size of a cell increases the surface area to volume ratio decrease. So a big cell has less surface area and small volume. Therefore surface area for transfer of metabolic substance per unit volume decreases so the cell's ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands also decreases.
But due to an increase in the volume of the cell the metabolic demand of cell increases because a larger cell requires more nutrients than a smaller cell to survive which can not be fulfilled efficiently due to less surface-area-to-volume ratio.
Therefore the correct answer is a, b, and c.
Answer: Phagocytosis and Autophagy
Such large particles are taken up in phagocytic vacuoles (phagosomes), which then fuse with lysosomes, resulting in digestion of their contents.
Explanation: That's what I would say. Hope this helped and i hope you have a beautiful day:]
