Question detail

Genetic-information application 42: a student is given a three-generation pedigree. What should they do?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Genetic information official content

Question

A. Use the three-generation pedigree to infer whether an allele is likely dominant or recessive using affected offspring; then apply mitosis vs meiosis: mitosis maintains chromosome number in body cells, whereas meiosis halves chromosome number for gametes and link the evidence directly to Compare outcomes of mitosis and meiosis.
B. Ignore the three-generation pedigree and give only a memorised sentence about the topic.
C. Treat every genetic term as interchangeable and avoid explaining DNA, chromosome or protein evidence.
D. Use the conclusion first, then leave out the molecular or inheritance evidence.

Answer

The correct answer is: Use the three-generation pedigree to infer whether an allele is likely dominant or recessive using affected offspring; then apply mitosis vs meiosis: mitosis maintains chromosome number in body cells, whereas meiosis halves chromosome number for gametes and link the evidence directly to Compare outcomes of mitosis and meiosis.

Explanation

The response is creditworthy because it uses a distinct evidence source (three-generation pedigree), performs the required task, and states the relevant boundary: mitosis vs meiosis: mitosis maintains chromosome number in body cells, whereas meiosis halves chromosome number for gametes. It stays anchored to Compare outcomes of mitosis and meiosis.

Common mistake

Genetic diversity can arise as a result of mutation or during meiosis common mistake 1

Giving a vague answer instead of directly addressing: Compare outcomes of mitosis and meiosis..

Answer by clearly explaining how to compare outcomes of mitosis and meiosis..

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