A cross between hybrid and its dominant parent is

Options

A. Back cross
B. Reciprocal cross
C. Monohybrid cross
D. Dihybrid cross

Answer

To solve the question "A cross between hybrid and its dominant parent is," we can follow these steps:

### Step 1: Understand the Terms
- **Hybrid**: An organism that is the offspring of genetically different parents, typically involving one dominant and one recessive trait.
- **Dominant Parent**: The parent that contributes the dominant allele for a trait.

### Step 2: Identify the Type of Cross
- When we cross a hybrid organism (which can be heterozygous) with one of its parents (in this case, the dominant parent), we are performing a specific type of genetic cross.

### Step 3: Define Back Cross
- The term for crossing a hybrid with one of its parents is called a **back cross**. This is because we are going back to one of the original parental genotypes.

### Step 4: Differentiate from Other Crosses
- It is important to note that a **test cross** is a specific type of back cross where the hybrid is crossed with a recessive parent to determine the genotype of the hybrid. However, a back cross can involve either the dominant or recessive parent.

### Step 5: Conclusion
- Therefore, the answer to the question is **A: back cross**.

### Summary of the Solution
- A cross between a hybrid and its dominant parent is called a back cross.