Question detail
Which statement correctly links random mutation to new allele formation? (Explain how random mutation can create new alleles.)
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Genetic information official content
Question
- A. A random mutation changes the DNA base sequence of a gene, so the altered sequence may become a new allele.
- B. A new allele appears when an organism deliberately changes a gene to suit its environment.
- C. A chromosome becomes a new allele whenever homologous chromosomes separate.
- D. Translation creates a new allele by changing the order of amino acids after mRNA is made.
Answer
The most defensible choice is: A random mutation changes the DNA base sequence of a gene, so the altered sequence may become a new allele.. This matches Explain how random mutation can create new alleles. because an allele is a version of a gene produced by a different DNA base sequence.
Explanation
A random mutation can alter the base sequence within a gene. If the altered sequence is inherited, it can be described as a new allele. This keeps gene, allele and chromosome distinct, and avoids the misconception that organisms mutate because they need a useful characteristic.
Common mistake
Genetic diversity and adaptation common mistake 1
Giving a vague answer instead of directly addressing: Explain how random mutation can create new alleles..
Answer by clearly explaining how to explain how random mutation can create new alleles..
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.