Which of the following is a potential drawback of using controlled breeding techniques?
Increased genetic diversity within the herd
Increased variability in product quality
Reduced disease resistance in the herd
Increased risk of genetic homogeneity within the herd
Increased risk of genetic homogeneity within the herd is a potential drawback of using controlled breeding techniques. While controlled breeding techniques can lead to improved productivity and better quality products, they also have the potential to increase the risk of genetic homogeneity within the herd. This can lead to a reduction in genetic diversity and an increased risk of certain types of diseases. Increased genetic diversity within the herd is not a drawback of controlled breeding techniques, but rather a desirable outcome. Similarly, variability in product quality may not necessarily be a drawback, as some variability may be necessary to meet different market needs. Reduced disease resistance may also be a potential drawback, but it is not necessarily a direct consequence of controlled breeding techniques. Hence option 4 is the correct answer.