Question

question 15 of 25

which statement best describes the law of independent assortment?

a. parental traits are completely independent from offspring traits.
b. the alleles for a trait combine during gamete formation.
c. offspring inherit two alleles from each parent, but only one is expressed.
d. a parents alleles are distributed among offspring independently of one another.

Explanation:

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<reasoning>

Define the law of independent assortment

Mendel's law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene.

Evaluate the given options

• Option A is incorrect because offspring traits are directly inherited from and determined by parental alleles, so they are not completely independent.
• Option B is incorrect because alleles for a trait segregate (separate) during gamete formation rather than combining.
• Option C is incorrect because offspring inherit only one allele from each parent (for a total of two), and the expression depends on dominance patterns.
• Option D is correct because it accurately describes how different alleles (for different genes) are distributed into gametes and subsequently to offspring independently of each other.

</reasoning>

<answer>
<mcq-option>A. Parental traits are completely independent from offspring traits.</mcq-option>
<mcq-option>B. The alleles for a trait combine during gamete formation.</mcq-option>
<mcq-option>C. Offspring inherit two alleles from each parent, but only one is expressed.</mcq-option>
<mcq-correct>D. A parent's alleles are distributed among offspring independently of one another.</mcq-correct>
</answer>

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Answer:

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<reasoning>

Define the law of independent assortment

Mendel's law of independent assortment states that the alleles of two (or more) different genes get sorted into gametes independently of one another. In other words, the allele a gamete receives for one gene does not influence the allele received for another gene.

Evaluate the given options

• Option A is incorrect because offspring traits are directly inherited from and determined by parental alleles, so they are not completely independent.
• Option B is incorrect because alleles for a trait segregate (separate) during gamete formation rather than combining.
• Option C is incorrect because offspring inherit only one allele from each parent (for a total of two), and the expression depends on dominance patterns.
• Option D is correct because it accurately describes how different alleles (for different genes) are distributed into gametes and subsequently to offspring independently of each other.

</reasoning>

<answer>
<mcq-option>A. Parental traits are completely independent from offspring traits.</mcq-option>
<mcq-option>B. The alleles for a trait combine during gamete formation.</mcq-option>
<mcq-option>C. Offspring inherit two alleles from each parent, but only one is expressed.</mcq-option>
<mcq-correct>D. A parent's alleles are distributed among offspring independently of one another.</mcq-correct>
</answer>

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