Reverse transcriptase is the viral enzyme responsible for making a DNA copy of the RNA genome from a retrovirus. As such, it is technically known as an RNA-dependent DNA polymerase. This is opposite to the usual flow of genetic information from DNA to RNA to protein.
This means downhill sections of the ride may be faster, and uphill sections slower. 1  Easy: Under 10 mph. 2  Leisurely: 10-12 mph. 3  Steady: 12-14 mph.  Moderate: 14-16 1  mph. Brisk: 16-18 2  mph. Vigorous: 18- 20 3  mph. Strenuous: 20-22  mph. Super Strenuous: 22+ mph.
Walking should be moderate and at a fairly brisk pace. Do keep in mind that what is a brisk pace to you is a running pace for a little Yorkie. The walk should be at a pace where the dog is moving along steadily; but not out of breath. You will want to walk your Yorkie puppy for a 15 to 20 minute interval.o keep in mind that what is a brisk pace to you is a running pace for a little Yorkie. The walk should be at a pace where the dog is moving along steadily; but not out of breath. You will want to walk your Yorkie puppy for a 15 to 20 minute interval.