Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

Can a mutation that causes a congenital anomaly occur spontaneously without family history?
Options
A Yes, de novo mutations occur in gametes or early zygotes
Correct Answer
B No, all genetic anomalies require carrier parents
C No, genetic defects only arise from external toxins
D Yes, but only in mitochondrial DNA
Correct Answer

Option A is the correct answer.

Detailed Explanation

Spontaneous (de novo) germline mutations can cause congenital disorders without familial history.

Hint

No hint available

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 2490 of 2556
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