Write a Python code that returns the reverse complement of a given DNA sequence E -NM AA ||| B IA 深 def reverseComplement(s): complement = {'A':'T', 'C':'G',T':'A', 'G':'C','N':'N'} t=" // your code goes here return t

2. For each of the following graphs, find the chromatic index and provide a coloring that demonstrates it is possible. In your drawing, make sure the graphs are large enough so that it is clear what the colors are! (a) ê (c) *

1 6 0 2 4 7 3 5 Graph G

Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the beach below with a long measuring tape. Bob is a pitcher and he knows that the fastest he can throw the ball is about vo 34.5 m/s. Bob starts the stopwatch as he throws the ball (with no way to measure the ball's initial trajectory), and watches carefully. The ball rises and then falls, and after 1, = 0.510 s the ball is once again level with Bob. Bob cannot see well enough to time when the ball hits the ground. Bob's friend then measures that the ball landed x = 128 m from the base of the cliff. How high up is Bob, if the ball started exactly 2 m above the edge of the cliff? Bob's position = %3D