You need to login first

Login information

Haven't yet registered?



Homework Help Boards (University / College Level)




Laboratory Help

Non-Homework Help Boards




* * * *
top posters

Support Us

If you found our community helpful, your small donation will continue to help us reach more students around the globe. You may also like us on Facebook or follow us on Twitter.
Pages: 1     Go Down
  New Topic  |  more  
What is the probability that an f2 seed chosen at random will be yellow?
Read 2813 times | 1 Replies | Average Rating Not Rated Yet
Posts: 16
Points: 34
Rep:  +0  -0 

For a more comfortable homework help experience, try
F1 generation were heterzygous, resulting in 1 YY, 2 Yy, 1 yy for the F2 generation. Yellow is a dominant trait, indicated by Y

Report this PostReport Abuse
Reply# 1
Posts: 88
Points: 0
Rep:  +0  -0 
What is the probability that an f2 seed chosen at random will be yellow?
A year ago
Well, all of the possible results or events are expressed by the description of generation F2:? = {YY (yellow), Yy (yellow; dominant trait), Yy (yellow; dominant trait), yy (not yellow)}
n(?) = 4

You can do this intuitively: three out of four seeds are of yellow specimens, so there's a 3/4 or 75% probability that yellow will be chosen.

Or you can do it by the theoretical definition of probability, using a formula:
p(A) = n(A) / n(?), where p(A) stands for "probability of happening the event A", n(A) stands for "number of elements or of individual events that satisfy the definition of A", and n(?) stands for "total number of possibilities; number of elements in the sample".
Being event A "choosing a seed of any yellow specimen", n(?) = 4 (4 genetic possibilities) and n(A) = 3 (3 out of all of the elements in ? satisfy the event, or, if being chosen, would mean that the event has happened, as 3 out of 4 seeds are yellow, according to genetics):
p(A) = 3/4 or 75%

Both ways, you've got your answer: the probability that an F2 seed chosen at random will be yellow is of 75% or 3/4.

Was my answer clear? I hope you could get it. And I hope I've helped!

Report this PostReport Abuse
Pages: 1     Go Up New Topic more
Related Topics
Note: This topic is currently locked from adding new posts. Only administrators and moderators can reply. If you'd like to contribute to this topic, start a new thread and make reference to this one. Otherwise, contact a moderator for more options.

Ask a Question

Click to ask a question. 468 Students and 36 members are standing by to answer all your science and biology homework problems, free. So far today, 143 guests have joined.
Related Images