× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
New Topic  
daddyfatsack daddyfatsack
wrote...
Posts: 2
Rep: 0 0
7 years ago
I'm trying to figure out the answer to the following:

Question: You cross two unicorns with long horns. The resulting progeny include both long-horned and short-horned unicorns. Some of the short-horned unicorns are true breeding but none of the long-horned unicorns are. Explain what is going on with this cross. Include a Punnett square to illustrate your explanation.

I can't seem to figure out genotypes that would result in the asked progeny without getting true-breeding long horned. anyone have an idea? thanks
Read 368 times
1 Reply

Related Topics

Replies
wrote...
#1
7 years ago
So you essentially it would be a cross between a (ss) homogozygous recessive unicorn and a heterozygous Long-horn unicorn (Ls):
 (s) - short-horn and the trait is recessive
 (L) - Long horn and trait is dominant
there is two distinct phenotypes

  the cross looks something like this:

     s  s
s  ss ss
L  Ls Ls

where there is a resultant (ss) unicorn is short and true breed
and the resultant (Ls) unicorn is Long horned but not true breed
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  917 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 66
  
 127
  
 266
Your Opinion
How often do you eat-out per week?
Votes: 79
Previous poll results: Who's your favorite biologist?