DNA replication is conducted by the polymerase II enzyme within eukaryotic cells. This enzyme incorporates nucleotides that are complementary to the leading strand and then to an RNA strand that starts the replication process.
When the 3' _ >5' exonuclease detects a mismatched pair of bases, it cuts and removes those bases. The polymerase II then fits the correct base pair and continues the replication process.
A tennis ball, flowers, and other items.
Fronts are conceptual lines that demarcate two air masses with distinct temperatures. The mixing of these air masses takes too long, resulting in various atmospheric phenomena. When a warm air mass encounters a cold air mass, the heavier cold air forms a wedge shape beneath the rising hot air, creating a ramp-like front line. In the area where these two air masses meet, the warm air cools, leading to condensation and cloud formation, which in turn results in precipitation. These warm fronts typically produce light but persistent rainfall.
Could you provide an image of the "rock below in Whistler, Canada"? This will help clarify the question.
c. PP
Jake exhibits a dominant trait for polydactyly, thus he must be PP or Pp. Lucy, having a normal toe count, has a recessive genotype, confirming she is pp.
If Jake were Pp, a breeding scenario of Pp X pp would result in half Pp and half pp kittens, indicating some kittens could be born with the recessive trait of 18 toes. However, none of the kittens possess 18 toes, all displaying a range of 21 to 25 toes. Therefore, Jake cannot be Pp .
Jake must be PP, as a cross of PP X pp guarantees that all kittens will have the Pp genotype, demonstrating the dominant pheno-type of polydactyly. Each kitten exhibits more than the recessive count of 18 toes, hence they are Pp. The variability in toe count arises from the trait's variable expressivity.
