Search found 1670 matches

by Poison
Sat Apr 28, 2007 8:48 pm
Forum: Cell Biology
Topic: on meiosis...
Replies: 5
Views: 2659

have a look at this figure. I don't think you really know meiosis.
by Poison
Sat Apr 28, 2007 8:45 pm
Forum: Cell Biology
Topic: on meiosis...
Replies: 5
Views: 2659

Haploid=n
Diploid=2n

As I said before,
mother's gamet= b
Father's gamets= B or b
Cross them. (I did it for you above, have a look at it)
by Poison
Wed Apr 25, 2007 3:01 pm
Forum: Cell Biology
Topic: mitosis v meioisis
Replies: 3
Views: 3331

make a search at least. I'm sure we have answered this about a million times...
by Poison
Wed Apr 25, 2007 2:59 pm
Forum: Cell Biology
Topic: on meiosis...
Replies: 5
Views: 2659

Eye color is not a good example for this as multiple modificator genes also play role but I'll try to explain in simple words. Blue (b) is recessive and brown (B) is dominant. bb will give a pheotype of blue. BB and Bb will give brown. So, possibilities: if bb and Bb is crossed: 1/2 bb you will have...
by Poison
Wed Apr 25, 2007 2:45 pm
Forum: Cell Biology
Topic: the number of homologous sets of chromosome in human...
Replies: 2
Views: 1791

I couldn't understand your question exactly but X and Y have common regions that make them act homologous if this is what you are trying to ask.
by Poison
Wed Apr 25, 2007 2:39 pm
Forum: Cell Biology
Topic: baisc question on meosis and mitosis
Replies: 2
Views: 2185

Sister chromatids(not homologous chromosomes)are held together with centromers in both meiosis and mitosis. In meiosis homologous chromosomes come closer to form tetrads. So crossing over occur between homologous chromosomes. Crossing over also occurs in mitosis. But as sister chromatids are identic...
by Poison
Thu Mar 22, 2007 8:34 pm
Forum: Genetics
Topic: please help me....
Replies: 3
Views: 3490

Or erythroblastosis fetalis :)
by Poison
Thu Mar 22, 2007 8:21 pm
Forum: Molecular Biology
Topic: Cyanide
Replies: 3
Views: 2072

The cell won't live long. Using only glycolysis is not enough for required energy.
by Poison
Thu Mar 22, 2007 8:09 pm
Forum: Cell Biology
Topic: Affected/Denatured Enzymes
Replies: 4
Views: 2855

noncompetitive
by Poison
Mon Mar 19, 2007 8:09 pm
Forum: Evolution
Topic: Dominance
Replies: 5
Views: 3620

We can not say "evolve" for dominance. Alleles are formed by mutations.
by Poison
Mon Mar 19, 2007 8:05 pm
Forum: Zoology Discussion
Topic: sex behaviour in animals and insects
Replies: 9
Views: 8054

What I read from a non-scientific magazine is that, dolphins are like human about this subject. Does anybody knows anything about this? I also read that orgasm of pigs lasts for 30 minutes. If they have sex just for reproduction, how can we talk about "orgasm"? Or can we? PS: As I said bef...
by Poison
Mon Mar 19, 2007 7:53 pm
Forum: Cell Biology
Topic: looking for some one who knows alot about theses topics
Replies: 2
Views: 1571

Ask your specific question(s). There are a lot of people who know well about those subjects.