× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
w
5
a
3
j
2
a
2
t
2
u
2
r
2
j
2
j
2
l
2
d
2
y
2
Home Q & A Board Biology-Related Homework Help Cell Biology
New Topic  
ayvidp ayvidp
wrote...
Go to Answer
Posts: 739
Rep: 0 0
6 years ago
Two protein kinases, PK1 and PK2, work sequentially in an intracellular signaling pathway.
 
  You create cells that contain inactivating mutations in the genes that encode either PK1 or PK2 and find that these cells no longer respond to a particular extracellular signal. You also create cells containing a version of PK1 that is permanently active and find that the cells behave as though they are receiving the signal even when the signal is not present. When you introduce the permanently active version of PK1 into cells that have an inactivating mutation in PK2, you find that these cells also behave as though they are receiving the signal even when no signal is present.
  A. From these results, does PK1 activate PK2, or does PK2 activate PK1? Explain your answer.
  B. You now create a permanently active version of PK2 and find that cells containing this version behave as though they are receiving the signal even when the signal is not present. What do you predict will happen if you introduce the permanently active version of PK2 into cells that have an inactivating mutation in PK1?
Read 68 times
1 Reply
Replies
Answer verified by a subject expert
goldenchild22goldenchild22
wrote...
#1
Top Poster
Posts: 848
Rep: 7 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
This verified answer contains over 100 words.
1

Related Topics

ayvidp Author
wrote...

6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
derya1234
wrote...

Yesterday
This helped my grade so much Perfect
prime7105
wrote...

2 hours ago
Just got PERFECT on my quiz
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1326 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 381
  
 5711
  
 392
Your Opinion
Which country would you like to visit for its food?
Votes: 262
Previous poll results: What's your favorite funny biology word?