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A cross was developed between 2 Rose pla...

A cross was developed between 2 Rose plants. They showed contrasting traits w.r.t the height of the plant. The final result had 50 percent parental traits. This cross can be classified as:

A

Cross exhibiting co-dominance

B

Test cross

C

Incomplete dominance

D

Trihybrid cross

Text Solution

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The correct Answer is:
To solve the question regarding the classification of the cross between two rose plants that showed contrasting traits with respect to height, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Traits**: The question states that the two rose plants show contrasting traits concerning height. This means one plant is tall (dominant trait) and the other is short (recessive trait). 2. **Understand the Result**: The final result of the cross shows that 50% of the offspring exhibit parental traits. This indicates that half of the offspring resemble one parent and the other half resemble the other parent. 3. **Examine Possible Genetic Interactions**: - **Co-dominance**: In co-dominance, both alleles express equally in the phenotype. However, this does not apply here since we have a clear dominant and recessive trait. - **Test Cross**: This is used to determine the genotype of an individual with a dominant phenotype by crossing it with a homozygous recessive individual. This does not apply here as we are not testing a genotype. - **Incomplete Dominance**: In incomplete dominance, the phenotype of the heterozygote is an intermediate of the two parental traits. This does not apply here since we are not seeing an intermediate height. - **Tri-hybrid Cross**: This involves three traits, which is not relevant to this scenario. 4. **Determine the Correct Classification**: Since the offspring show 50% of each parental trait, this indicates that the traits are segregating in a manner consistent with **incomplete dominance**. In this case, the offspring do not exhibit a complete dominance of one trait over the other, resulting in a blend or average of the two traits. 5. **Conclusion**: Therefore, the cross can be classified as **incomplete dominance**. ### Final Answer: The cross can be classified as **incomplete dominance**. ---
To solve the question regarding the classification of the cross between two rose plants that showed contrasting traits with respect to height, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Traits**: The question states that the two rose plants show contrasting traits concerning height. This means one plant is tall (dominant trait) and the other is short (recessive trait). 2. **Understand the Result**: The final result of the cross shows that 50% of the offspring exhibit parental traits. This indicates that half of the offspring resemble one parent and the other half resemble the other parent. ...
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