Each type of human cell has a different structure and function because
A - Scottish Highers Biology - Question 15 - 2018
Question 15
Each type of human cell has a different structure and function because
A. only some of their genes are expressed
B. they contain different genes
C. some genes are lo... show full transcript
Worked Solution & Example Answer:Each type of human cell has a different structure and function because
A - Scottish Highers Biology - Question 15 - 2018
Step 1
A. only some of their genes are expressed
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Answer
While it is true that different cells express different sets of genes, this option does not fully explain why different cell types have unique structures and functions.
Step 2
B. they contain different genes
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Answer
This statement is incorrect because all human cells (with the exception of gametes) contain the same genetic material; it is the expression of these genes that leads to functional differences.
Step 3
C. some genes are lost during differentiation
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Answer
This option is misleading because genes are not lost but rather regulated in their expression during differentiation.
Step 4
D. some genes are gained during differentiation.
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Answer
This statement is partially correct but can be misleading. While certain genes can be activated during differentiation, the primary reason for structural and functional differences among cell types is that different genes are expressed rather than gained.
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