Explanation:

This week, the US Food and Drug Administration (FDA) approved a first-of-its-kind intentional genomic alteration (IGA) in a line of domestic pigs referred to as GalSafe pigs.

• Genetically modified (GM) pigs have been approved for food and medical use in the US, drawing mixed reactions. The pigs are only the second GM animal to be approved for food after GM salmon in 2015.
• The US FDA this week approved the GM pigs, which have been engineered to eliminate alpha-gal, a sugar found in pigs that can cause allergic reactions.
• The FDA said it was the first time it had approved a GM animal for human food and medical use.
• The FDA said it had determined that the food from the GM pigs, known as GalSafe pigs, is “safe for the general population to eat”, and suggested the meat might be sold by mail order.
• Intentional genomic alteration in animals means making specific changes to the genome of the organism using modern molecular technologies that are popularly referred to as “genome editing” or “genetic engineering”.
• However, there are other technologies that can be used to make IGAs in animals.
• Such changes in the DNA sequence of an animal may be carried out for research purposes, to produce healthier meat for human consumption and to study disease resistance in animals among other reasons.

Hence only statement 1st is correct.