× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
s
3
v
3
p
3
m
2
s
2
d
2
N
2
d
2
e
2
s
2
s
2
e
2
New Topic  
palantriel palantriel
wrote...
Posts: 464
Rep: 0 0
6 years ago
Fraternal twins arise from
  a. fertilization of two eggs by two sperm.
  b. fertilization of two eggs by one sperm.
  c. a split of the morula.
  d. a split of the blastomere.
  e. cleavage of the zygote.

Question 2

Identical twins arise from a split at which stage?
  a. the morula
  b. the blastula
  c. two cells
  d. eight cells
  e. 32 cells
Textbook 
Human Biology

Human Biology


Edition: 10th
Authors:
Read 69 times
2 Replies

Related Topics

Replies
wrote...
6 years ago
Answer to q. 1

A

Answer to q. 2

C
palantriel Author
wrote...
6 years ago
Thank you for taking the time to explain this, just got my quiz back: Perfect
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1215 People Browsing
 144 Signed Up Today
Related Images
  
 415
  
 1528
  
 5644
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 365

Previous poll results: What's your favorite math subject?