A haploid parent produces gametes by . . . . . . A. . . . .division while diploid parent produces gametes by . . . . . . B . . . . Division.

Options

A. a-mitotic, b-meiotic
B. a-meiotic, b-mitotic
C. a-amitotic, b-meiotic
D. a-meiotic, b-amitotic

Answer

To solve the question, we need to understand the processes of gamete production in haploid and diploid organisms.

### Step-by-Step Solution:

1. **Identify the type of parent**:
- A haploid parent has only one set of chromosomes (n).
- A diploid parent has two sets of chromosomes (2n).

2. **Determine the process for the haploid parent**:
- A haploid parent produces gametes by **mitosis**.
- Mitosis is an equational division where the chromosome number remains the same, which is suitable for haploid organisms since they need to maintain their chromosome number.

3. **Determine the process for the diploid parent**:
- A diploid parent produces gametes by **meiosis**.
- Meiosis is a reductional division that reduces the chromosome number by half, producing haploid gametes (n) from diploid cells (2n). This is necessary for maintaining the correct chromosome number in the offspring after fertilization.

4. **Combine the findings**:
- Therefore, the haploid parent produces gametes by **mitotic division** (A), while the diploid parent produces gametes by **meiotic division** (B).

### Final Answer:
A. mitotic division; B. meiotic division.