Spot the mistakes in the given statements and correct them.
a) The point of contact between the homologous pair of chromosomes are called, crossing over.
b) The exchange of segments of chromatids between homologous chromosomes, is called Chiasmata.

Explanation

### Step-by-Step Solution:

**Statement a:** "The point of contact between the homologous pair of chromosomes are called, crossing over."

1. **Identify the Mistake:** The term "crossing over" is incorrectly used to describe the point of contact between homologous chromosomes.
2. **Correct the Statement:** The correct term for the point of contact between homologous chromosomes is "chiasmata."
3. **Revised Statement:** "The point of contact between the homologous pair of chromosomes is called chiasmata."

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