Answer:
The statement that is correct is that all cells have the same genes, but different genes are active in different cells.
Explanation:
Differentiation or specialization is a function that cells possess and is what allows them to have different types of cells and tissues.
Cell differentiation depends on genetic regulation, a mechanism that determines the specific genes that are expressed in a cell or tissue type.
All cells contain the same DNA, which is organized into chromosomes and contain the genes that determine specific characteristics. <u>There is cell differentiation because some genes can be expressed and others are suppressed, all due to genetic regulation</u>.
The other choices are wrong because:
- <em>The eyes look different from the liver, because they have the same genes, but only some are expressed.
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- <em>Differentiated cells and tissues do not lose their genes.
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- <em>All cells have DNA.</em>
The correct answer is connective tissue.
Osteoarthritis refers to the most general kind of arthritis, influencing various individuals all over the globe. It takes place when the protective cartilage on the terminals of the bones wears down with time.
However, osteoarthritis can destruct any joint in the body; the ailment most usually influences the joints in the knees, hands, spine, and hips. Cartilage is a flexible connective tissue, found in the articulating surfaces of the joints. Thus, the condition osteoarthritis affects the connective tissue.
Answer:
The right response is "Natural killer".
Explanation:
- Natural killer cells constitute immune cells which could also identify and ultimately destroy distressed or damaged cells. This might also target cancerous as well as tumors.
- That alone reduces inflammation that lyses this same cell cycle rather than being amongst the very first cells towards prepare an inflammatory system, and even more so towards virus cells, participating including its destruction.
