Some christians are in favour of genetic engineering, as it can be used to save/enhance human life. We have God-given knowledge and reason
Other christians however, are cautious about wether or not genetic engineering is altering/manipulating God's creation
Genetic engineering could be used to produce transhumans, so humans would no longer be made in the image of God
Genetically modified crops van help reduce global hunger, but if they have a negative impact on biodiversity, then its damaging God's creation
Genetically modified animals ho against Natural Moral Law. In Natural Moral Law, Aquinas believed everything had an end purpose, and geneticcally engineering them would go against this
Some forms of genetic engineering e.g. Somatic cell therapy may be seen as acceptable
Other forms of genetic engineering, such as Germline therapy are less accepted, as mistakes can cause problems for the next generation. Enhancement therapy is also less accepted because it could create inequality
Joseph Fletcher: A christian that believed genetic engineering could advance scientific knowledge positively and show agape love
Situation ethics and genetic engineering
In some cases, it could be used to 'preserve human' life
"Love is the only means" - if there is loving intention it is acceptable