Answer:
The num >= 0 test condition is not correct
Explanation:
The line would lead to the printing of "Your entered: " + str(num) repeatedly without stopping.
The while loop checks the condition that the "num" variable is less than zero. This condition will always be true as there is no means of resetting the value after initially inputting the value that is less than zero.
Hexadecimal numbers are just a convenient representation of binary data. When entered as text, they consist of ASCII characters 0-9 and a-f. The numbers will then have to be converted to binary. This is accomplished by converting to uppercase, subtracting the ASCII offset (48 for 0-9 or 55 for A-F), so that the result is a number between 0 and 15 (inclusive). This can be stored in computer memory to represent 4 bits.
Hexadecimal numbers represent binary numbers in the following way:
hex | binary
0 = 0000
1 = 0001
2 = 0010
3 = 0011
4 = 0100
5 = 0101
6 = 0110
7 = 0111
8 = 1000
9 = 1001
a = 1010
b = 1011
c = 1100
d = 1101
e = 1110
f = 1111
As you can see, no other 4 bit combination exists.
The only correction I see is you need to add curly braces to enclose the second and third lines.
Answer:
The correct answer to the following question will be "True".
Explanation:
The "kernel" as shown at the core of your OS would be the central machine program. The program facilitates the essential functions of a computer processor, including coordinating activities, executing programs, and managing devices. This allows users to define a series of directions to try to resolve the connections to running program files in an order of preference.
So, the given statement is true.
Answer:
Explanation:
The following code is written in Python. It continues looping and asking the user for an oligonucleotide sequence and as long as it is valid it outputs the reverse complement of the sequence. Otherwise it exits the loop
letters = {'A', 'C', 'G', 'T'}
reloop = True
while reloop:
sequence = input("Enter oligonucleotide sequence: ")
for x in sequence:
if x not in letters:
reloop = False;
break
if reloop == False:
break
newSequence = ""
for x in sequence:
if x == 'A':
newSequence += 'T'
elif x == 'T':
newSequence += 'A'
elif x == 'C':
newSequence += 'G'
elif x == 'G':
newSequence += 'C'
print("Reverse Complement: " + newSequence)
