Read the passage below and answer the questions that follow.
Transgenic Goats The microinjection of human genetic material into fertilized animal eggs allows the production of transgenic livestock. Goat eggs are fertilized in vitro and a human gene is microinjected into the pronucleus. These eggs develop into early-stage embryos, which are then surgically transferred into the uterus of surrogate mothers.
A transgenic goat named Gemma was successfully created to express human antithrombin in her milk. Antithrombin is a protein that prevents harmful blood clotting in humans. When she matured, Gemma was bred with a normal, non-transgenic male goat. She gave birth to a litter of 8 offspring, of which 6 successfully inherited the transgene and the ability to produce antithrombin in their milk.
Explain what is meant by the term gene.
In which part of the surrogate mother are the embryos implanted?
What percentage of the offspring from Gemma's litter were confirmed to inherit the transgenic DNA?
