Embryogeny in Capsella was first of all studied by

Options

A. Hanstein
B. Souges
C. Famintzin
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about who first studied embryogeny in the plant Capsella.

2. **Defining Embryogeny**: Embryogeny refers to the process of development of an embryo from a zygote. In flowering plants, this involves several stages of cell division and differentiation.

3. **Identifying the Key Scientist**: The video transcript mentions that in 1870, a scientist named Henstein studied the embryogenesis of Capsella bursa-pastoris, commonly known as Shefford's purse.

4. **Describing the Study**: Henstein observed that the first division of the zygote results in two cells: the basal cell and the terminal cell. The basal cell develops into the suspensor, while the terminal cell develops into the globular embryo.

5. **Conclusion**: Based on the information provided, the correct answer to the question is that Henstein was the first to study embryogeny in Capsella.

**Final Answer**: Option 1: Henstein.

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