Give two reasons for the appearance of variations among the progeny formed by sexual reproduction.

Explanation

**Step-by-Step Solution:**

1. **Understanding Sexual Reproduction**: Sexual reproduction involves the fusion of male and female gametes, which leads to the formation of a zygote. This process is crucial for the genetic diversity seen in the offspring.

2. **Genetic Contribution from Parents**: In sexual reproduction, both parents contribute their genetic material equally. This means that the offspring receive a combination of genes from both the mother and the father. This mixing of genetic material results in variations among the progeny.

3. **Formation of Blended Genetic Material**: The combination of genetic material from two different parents leads to a mixture or blended genetic material in the offspring. This genetic blending is a primary reason for the variations observed in the progeny.

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