1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oee [108]
3 years ago
12

1. Write a program to prompt the user to enter a single character and respond back whether or not the character is valid dna. 2.

Write a program to prompt the user to enter a single character and respond back whether or not the character is valid rna. 3. Write a program to prompt the user to enter a dna sequence and respond back whether or not the sequence is valid. 4. Write a program to prompt the user to enter a rna sequence and respond back whether or not the sequence is valid.
Computers and Technology
1 answer:
Nina [5.8K]3 years ago
7 0

Answer:

Answer 1:

dna = input("Enter DNA type: ")

dna = dna.upper()

print(dna)

if dna == "A" or dna == "B" or dna == "Z":

   print("valid")

else:

   print("invalid")

Answer 2:

rna = input("Enter DNA type: ")

rna = rna.lower()

print(rna)

if rna == "m" or rna == "t" or rna == "r":

   print("valid")

else:

   print("invalid")

Answer 3:

dnaSquence = input("Enter the DNA sequence: ")

type = "valid"

for char in dnaSquence:

   if char not in ["A", "C", "G", "T"]:

       type = "invalid"

       break

print(type)

Answer 4:

rnaSquence = input("Enter the RNA sequence: ")

type = "valid"

for char in rnaSquence:

   if char not in ["A", "C", "G", "U"]:

       type = "invalid"

       break

print("valid")

Explanation:

There are three types of DNA; Type A, Type B and Type Z.

A DNA sequence consists of; A, C, G and T.

There are three types of RNA; mRNA, tRNA and rRNA.

An RNA sequence consists of; A, C, G and U.

Code Explanations:

Code 1:

dna = input("Enter DNA type: ")

dna = dna.upper()

print(dna)

if dna == "A" or dna == "B" or dna == "Z":

   print("valid")

else:

<em>    print("invalid")</em>

  1. prompts and Takes a single character input
  2. converts the character to upper case
  3. compares the input to the DNA types
  4. Prints "valid" for a valid input else prints "invalid"

Code 2:

rna = input("Enter DNA type: ")

rna = rna.lower()

print(rna)

if rna == "m" or rna == "t" or rna == "r":

   print("valid")

else:

<em>    print("invalid")</em>

<em />

  1. prompts and Takes a single character input
  2. converts the character to lower case
  3. compares the input to the RNA types
  4. Prints "valid" for a valid input else prints "invalid"

Code 3:

Answer 3:

dnaSquence = input("Enter the DNA sequence: ")

type = "valid"

for char in dnaSquence:

   if char not in ["A", "C", "G", "T"]:

       type = "invalid"

       break

print(type)

  1. It prompts for a DNA sequence.
  2. Declares a string variable "type" and initializes type to valid.
  3. The FOR loop checks every character in the DNA sequence.
  4. If the character is not in the list [A, C, G, T] type becomes invalid and the loop breaks and the type "invalid" is printed to the screen.
  5. if all the characters are in the list, then type will remain valid and will be printed to the screen.

Code 4:

rnaSquence = input("Enter the RNA sequence: ")

type = "valid"

for char in rnaSquence:

   if char not in ["A", "C", "G", "U"]:

       type = "invalid"

       break

print("valid")

  1. It prompts for a RNA sequence.
  2. Declares a string variable "type" and initializes type to valid.
  3. The FOR loop checks every character in the RNA sequence.
  4. If the character is not in the list [A, C, G, U] type becomes invalid and the loop breaks and the type "invalid" is printed to the screen.
  5. if all the characters are in the list, then type will remain valid and will be printed to the screen.

You might be interested in
PLEASE HELP!!!!!! ASAP
NNADVOKAT [17]

Answer:

use a wizard or use a design view

Explanation:

i took the test

4 0
3 years ago
Read 2 more answers
Write out code for a nested if statement that allows a user to enter in a product name, store the product into a variable called
OlgaM077 [116]

Answer:

product_name = input("Enter product name : ")

if product_name=="pen"or"book"or"box"or"pencil"or"eraser":

   if product_name == "pen":  

       amount = 10

       print(f"Product Name: {product_name}\nCost: {amount} rupees")

   if product_name == "book":

       amount = 100

       print(f"Product Name: {product_name}\nCost: {amount} rupees")

   if product_name == "box":  

       amount = 150

       print(f"Product Name: {product_name}\nCost: {amount} rupees")

   if product_name == "pencil":  

       amount = 5

       print(f"Product Name: {product_name}\nCost: {amount} rupees")

   if product_name == "eraser":

       amount = 8

       print(f"Product Name: {product_name}\nCost: {amount} rupees")

else:  

   print("Item not found!")

Explanation:

The python program is a code of nested if-statements that compares the input string to five items of the first if-statement. For every item found, its code block is executed.

6 0
3 years ago
What will be the output of the following program? Assume the user responds with a 5.
FrozenT [24]

The output will be: You owe $ 15.0

4 0
3 years ago
Thanks for help evreybody
ladessa [460]

Answer:

np

Explanation:

7 0
3 years ago
Read 2 more answers
Because of the abundance of water on planet Earth, hydrogen gas (H2) is a candidate in the search for a replacement for petroleu
Dennis_Churaev [7]

The reason why plants are considered to be one step ahead in the utilization of hydrogen as an alternative fuel source is because; Plant cells possess water-splitting enzymes

<h3>What are splitting Enzymes?</h3>

Splitting Enzyme’s are like aldolases that catalyze the conversion of a molecule into two smaller molecules without the addition or removal of any atoms.

Now in plant biology, plants make use of he light-driven water-splitting/oxygen-evolving enzyme known as Photosystem II in photosynthesis to split water.

Read more about splitting enzymes at; brainly.com/question/14713715

3 0
2 years ago
Other questions:
  • Rachel uses a word processor to write short stories. However, most of her time is spent toying with the keys, rather than in wri
    13·2 answers
  • // PrintStrings // Traverse the 2D character array "strings" and print each of the contained strings.// See the example outputs
    10·1 answer
  • What do you call the process of translating statements written by a developer? What is the result of this process?
    6·1 answer
  • Which computer device is used to capture or copy a photograph to place in a report?
    14·1 answer
  • You have been asked to create a query that will join the Production.Products table with the Production.Categories table. From th
    6·1 answer
  • A writing team wants to present the six-month sales figures for its company's 14 sales representatives in a report. Because mana
    11·1 answer
  • Write a class called TextProcessor that implements the methods listed below. Your implementation may use the charAt() and length
    14·1 answer
  • Is orgenized maningful and useful data​
    15·1 answer
  • The process of arranging the item of a column in some sequence or order is known as?
    12·1 answer
  • What is System Testing
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!