When _____ pairs of traits are combined In a hybrid _____ of one pair of chracters is independent of the other pair of characters

Options

A. one, linkage
B. two, segregation
C. one, segregation
D. None of these

Answer

To solve the question "When _____ pairs of traits are combined in a hybrid _____ of one pair of characters is independent of the other pair of characters", we need to fill in the blanks correctly.

### Step-by-Step Solution:

1. **Understanding the Concept of Hybridization**:
- A hybrid organism is formed when two different parents are crossed. Each parent contributes genetic material, which results in the offspring having traits from both parents.

2. **Identifying the Number of Trait Pairs**:
- In the context of genetics, particularly Mendelian genetics, when two traits are being considered, we typically refer to two pairs of traits. For example, if we consider traits like flower color and plant height, each trait can have two alleles (dominant and recessive).

3. **Applying the Law of Independent Assortment**:
- According to Mendel's law of independent assortment, the inheritance of one trait does not affect the inheritance of another trait. This means that the segregation of one pair of alleles is independent of the segregation of another pair.

4. **Filling in the Blanks**:
- Based on the understanding that we are dealing with two pairs of traits and that the inheritance of one pair is independent of the other, we can fill in the blanks as follows:
- "When **two** pairs of traits are combined in a hybrid, **the segregation** of one pair of characters is independent of the other pair of characters."

### Final Answer:
"When **two** pairs of traits are combined in a hybrid, **the segregation** of one pair of characters is independent of the other pair of characters."