âThereâs called free circulating DNA, the fetus, some of its DNA gets into the maternal blood and we can actually detect that DNA -- the accuracy of these tests are about 99 percent,â Dr. Abdullah said, âWe can do this test around 10 weeks, so itâs very early in the pregnancy.â.
Daytona International Speedway is 2.5 miles (4 km) long and a 500-mile race requires 200 laps to complete. However, the race is considered official after half its distance (100 laps or 250 miles (400 km)) has been completed.
Report Abuse. if your asking how long it should take to run a mile it should take you under 25 minutes but if you want to run like in the olypics it should take you about 2 minutes and 50 seconds to run a lap.Just another White Boy Â· 8 years ago. Thumbs up. 1.f your asking how long it should take to run a mile it should take you under 25 minutes but if you want to run like in the olypics it should take you about 2 minutes and 50 seconds to run a lap. Just another White Boy Â· 8 years ago.