How did scientist prove that dolly was not a result of a sneak mating

What is the next step in the process after a substrate enters the active site of an enzyme

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above

Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.