### Poll

What is your overall opinion on Barack Obama's tenure as president?
Excellent
Good
Terrible
If you would like to vote in this poll, please login or register

Previous poll results: Do you believe in global warming?
 General Biology   31 minutes ago   N/A   4 Views Psychology and Mental Health   An hour ago   N/A   7 Views Developmental Psychology   3 hours ago   N/A   9 Views Developmental Psychology   3 hours ago   N/A   7 Views Developmental Psychology   3 hours ago   N/A   2 Views View More Recently Posted Questions
 New Topic
sniper11b
wrote...
3 years ago
 What is the probability that an f2 seed chosen at random will be yellow? F1 generation were heterzygous, resulting in 1 YY, 2 Yy, 1 yy for the F2 generation. Yellow is a dominant trait, indicated by Y .rate_stars {pointer-events: none;} Read 4844 times 1 Reply
replies
wrote...
3 years 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(?) = 4You 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!
 New Topic
Related Topics
 Genetics and Developmental Biology   4 years ago   1 Reply   1812 Views Genetics and Developmental Biology   4 years ago   2 Replies   596 Views Genetics and Developmental Biology   3 years ago   2 Replies   245 Views Psychology and Mental Health   A year ago   3 Replies   131 Views
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.

### Control Panel

Post homework questions online and get free homework help from tutors.
There are currently 167 guests browsing and 6 members online. So far today, 517 students have registered.