What is the best explanation for the successful development of transgenic species? (A) Artificial pollination works across the plant kingdom - HSC - SSCE Biology - Question 16 - 2014 - Paper 1

To determine the best explanation for the successful development of transgenic species, we must analyze each option carefully:

• Option A suggests that artificial pollination works across the plant kingdom. While artificial pollination is important for plant breeding, it does not directly relate to the concept of transgenic species, which involves genetic modifications rather than pollination methods.

• Option B states that nuclear transplantation from cell to cell is easily achieved. This process is indeed significant in genetic engineering, yet it doesn't encompass the broader concept of successful transgenic organism development.

• Option C claims that DNA in the biosphere is composed of the same chemical components. This is a foundational truth in genetics, emphasizing the universality of DNA. It underlines the compatibility of genes from different organisms, making it a strong candidate for transgenic success.

• Option D asserts that genes from different animals within the one species are easily combined. While it’s true that some genetic transfer can occur within species, the key aspect of transgenic species is the incorporation of genes from different species, not just within one.

Based on this analysis, Option C is the best explanation for the successful development of transgenic species.