Multiple Choice
How many chromosomes does a typical human somatic (body) cell contain?
100
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12. Meiosis
Genes & Alleles
Multiple Choice
Which of the following statements is true about the relationship between alcoholism and genetics?
A
There is no evidence that genetics influence the risk of developing alcoholism.
B
Genetic factors can increase an individual's susceptibility to alcoholism, but environment also plays a significant role.
C
Alcoholism is caused solely by a single gene mutation.
D
All individuals with a family history of alcoholism will inevitably develop the disorder.
Verified step by step guidance1
Understand the question: The problem is asking about the relationship between alcoholism and genetics, and requires evaluating the truth of several statements.
Step 1: Recall the concept of genetic predisposition. Genetic predisposition refers to the increased likelihood of developing a condition due to inherited genetic factors. However, it does not guarantee the development of the condition.
Step 2: Consider the role of environmental factors. While genetics can increase susceptibility to alcoholism, environmental factors such as social influences, stress, and access to alcohol also play a significant role in determining whether an individual develops alcoholism.
Step 3: Evaluate the incorrect statements. The statement 'Alcoholism is caused solely by a single gene mutation' is false because alcoholism is influenced by multiple genes and environmental factors. Similarly, the statement 'All individuals with a family history of alcoholism will inevitably develop the disorder' is false because genetic predisposition does not guarantee the development of alcoholism.
Step 4: Identify the correct statement. The statement 'Genetic factors can increase an individual's susceptibility to alcoholism, but environment also plays a significant role' is correct because it accurately reflects the interplay between genetic and environmental influences on alcoholism.
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