Crossing heterozygotes with incomplete dominance can result in offspring whose phenotypes (mark all that apply) Oa. are the same as neither parent Ob.are the same as the parent who contributed the sperm Oc. are the same as the parent who contribute the eggs Od.are a blend of the two parents

Human Anatomy & Physiology (11th Edition)
11th Edition
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Chapter1: The Human Body: An Orientation
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**Title: Understanding Incomplete Dominance in Genetics**

**Description:**

Incomplete dominance is a genetic scenario where the phenotype of heterozygous offspring is a blend of the parents' phenotypes rather than one being completely dominant over the other. In this educational segment, you'll explore how crossing heterozygotes with incomplete dominance can result in various offspring phenotypes.

**Question:**

When crossing heterozygotes with incomplete dominance, the resulting offspring can have phenotypes that (mark all that apply):

- a. are the same as neither parent
- b. are the same as the parent who contributed the sperm
- c. are the same as the parent who contributed the eggs
- d. are a blend of the two parents

**Explanation:**

The correct response highlights the unique nature of incomplete dominance, where none of the alleles completely mask the other, leading to a new phenotype that is an intermediate blend of the two parents' traits. This differs from complete dominance where the dominant allele masks the recessive one completely.
Transcribed Image Text:**Title: Understanding Incomplete Dominance in Genetics** **Description:** Incomplete dominance is a genetic scenario where the phenotype of heterozygous offspring is a blend of the parents' phenotypes rather than one being completely dominant over the other. In this educational segment, you'll explore how crossing heterozygotes with incomplete dominance can result in various offspring phenotypes. **Question:** When crossing heterozygotes with incomplete dominance, the resulting offspring can have phenotypes that (mark all that apply): - a. are the same as neither parent - b. are the same as the parent who contributed the sperm - c. are the same as the parent who contributed the eggs - d. are a blend of the two parents **Explanation:** The correct response highlights the unique nature of incomplete dominance, where none of the alleles completely mask the other, leading to a new phenotype that is an intermediate blend of the two parents' traits. This differs from complete dominance where the dominant allele masks the recessive one completely.
Expert Solution
Step 1

Dominant and recessive traits are the two different forms of the gene. The trait which is expressed visibly in an individual is called dominant and those which do not get expressed in an individual are called a recessive trait.

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