× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
g
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
s
2
Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
New Topic  
Jules3791 Jules3791
wrote...
Posts: 52
Rep: 0 0
11 years ago
and also describe two differences between seminiferous tubules and the sperm duct. Thanks!
Read 642 times
3 Replies

Related Topics

Replies
wrote...
#1
11 years ago
The male and female gamete contribute the same amount of choromosome to the fertilized egg. In humans, they would each contribute 23 chromosomes so that the fertilized egg has 46 choromosomes.

The seminiferous tubules is where the meiosis takes place therefore, creating sperms. Sperm duct is also known as the vas deferens and is involved with ejaculation when the duct contracts reflexively and propells the sperm forward.
wrote...
#2
11 years ago
Yes, if you're referring to a mitochondrial DNA chromosomes, because they all comes from mother's side, therefore there is a maternal inheritance. All karyotype chromosomes are contributed equally  from each parent.  
Seminiferous tubules is a place where the sperm is produced. After its production it leaves testis way of the rete, which ultimately converges on about twelve efferent ducts.
wrote...
#3
11 years ago
They both contribute equal amounts. 23 from the mother and 23 from the father, leaving you with 46. But it may interest you to know that the DNA in the mitochondria comes from the cytoplasm of the egg (mothers contribution).
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  736 People Browsing
 107 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 558
  
 1164
  
 752
Your Opinion
Do you believe in global warming?
Votes: 370
Previous poll results: How often do you eat-out per week?