Search found 232 matches

by Navin
Wed Aug 09, 2006 7:54 am
Forum: Botany Discussion
Topic: Preserving Plant Specimens
Replies: 3
Views: 2540

Preserving Plant Specimens

I am currently preserving plant specimens as a hobby. Currently, I insert the plant specimens into glass jars containing 50% isopropyl alcohol. The plant specimes do get decolourised, but even so, they still look nice. Have a look at the pictures below. Could anyone tell me if there is a better pres...
by Navin
Fri Aug 04, 2006 2:47 pm
Forum: Molecular Biology
Topic: Restriction Enzymes
Replies: 5
Views: 3070

So you are refering to the active site of the restriction enzymes?
by Navin
Fri Aug 04, 2006 6:51 am
Forum: Molecular Biology
Topic: Restriction Enzymes
Replies: 5
Views: 3070

Something special about restriction sites: They are palindromic sequences.
by Navin
Thu Aug 03, 2006 4:00 pm
Forum: Physiology
Topic: why women cry more than men?
Replies: 23
Views: 42382

I think the crying spells are perfectly normal as it is again due to the hormonal cycle which results in varying emotions at different times.
by Navin
Thu Aug 03, 2006 3:58 pm
Forum: Human Biology
Topic: Womb testosterone exposure, finger ratio etc...
Replies: 10
Views: 13480

I think that testosterone in the womb has a much different effect than testosterone produced during puberty.

I just want to clearify something: Why is there testosterone present in the womb in the first place?
by Navin
Wed Aug 02, 2006 11:10 am
Forum: Genetics
Topic: Genetics of Marfan Syndrome
Replies: 3
Views: 3151

Ok, thanks for your help. Now I can conclude that if at least one parent is heterozygous for that gene, there is a possibility of the offspring having Marfan Syndrome.
by Navin
Wed Aug 02, 2006 4:05 am
Forum: Genetics
Topic: Genetics of Marfan Syndrome
Replies: 3
Views: 3151

Genetics of Marfan Syndrome

I understand that Marfan Syndrome is caused due to one's genetic traits. I have reason to believe that Marfan Syndrome occurs when there is an abnormal gene on chromosome 15. However I want to know more about this, how the mutation occurs, and especially if this trait is dominant or something else. ...
by Navin
Sat Jul 29, 2006 12:24 pm
Forum: Cell Biology
Topic: Questions on mitosis
Replies: 13
Views: 16095

I have a strange feeling that you have no clue as to what cytokinesis is.

So to help you out, here is a link on cytokinesis: http://en.wikipedia.org/wiki/Cytokinesis
by Navin
Fri Jul 28, 2006 11:17 am
Forum: Cell Biology
Topic: How does a Virus cause Cancer?
Replies: 7
Views: 12103

is it a form of frameshift mutation?
by Navin
Fri Jul 28, 2006 7:14 am
Forum: Cell Biology
Topic: How does a Virus cause Cancer?
Replies: 7
Views: 12103

How does a Virus cause Cancer?

Cancer occurs when there is a mutation in the DNA of a cell leading to oncogenes or even loss of function of tumor supressive genes. However, I am unclear how a virus may cause cancer. I think that it has got to do something with the lysogenic cycles of certain viruses because it is only during that...
by Navin
Fri Jul 28, 2006 7:05 am
Forum: Molecular Biology
Topic: 28S:18S rRNA ratio
Replies: 6
Views: 15122

i think nite means "why is there twice the amount of 28s as compared to 18s (after running the gel)".
by Navin
Thu Jul 27, 2006 8:09 am
Forum: Human Biology
Topic: Blushing
Replies: 3
Views: 2942

aka ateriole dilation (for blushing) or constriction (for going pale).