Search found 82 matches

by Adz795
Mon Jan 02, 2012 5:44 am
Forum: Zoology Discussion
Topic: bottom and surface dwelling fish
Replies: 11
Views: 9822

Thanks a lot canalon. I do approach situations with questions similar to the ones you suggested. The reason I posted this question was that the answer says that Fish I (442) is bottom dwelling and Fish II (1725) is surface dwelling. That is contradictory to Trevor's logic (and mine too). I don't see...
by Adz795
Tue Dec 27, 2011 8:34 am
Forum: Zoology Discussion
Topic: bottom and surface dwelling fish
Replies: 11
Views: 9822

bottom and surface dwelling fish

Q. Values of the total surface area of gills (in arbitrary units) per unit gram body weight of two types of fish are given below: Fish I: 442 Fish II: 1725 One of them is a bottom dwelling fish while the other is a surface dwelling fish. Identify the two types. That was the question. I don't underst...
by Adz795
Tue Dec 06, 2011 8:17 am
Forum: Cell Biology
Topic: Centromeres in a resting nucleus
Replies: 3
Views: 3135

I mean functionally.
by Adz795
Sun Dec 04, 2011 10:00 am
Forum: Ecology
Topic: Climax ecosystem
Replies: 1
Views: 4009

Climax ecosystem

In a climax ecosystem, the production to community respiration ration is 1.

What does this mean? I do not understand. Please explain.
Thank you.
by Adz795
Sun Dec 04, 2011 9:55 am
Forum: Cell Biology
Topic: Centromeres in a resting nucleus
Replies: 3
Views: 3135

Centromeres in a resting nucleus

Please take a look at this statement: Centromeres appear as constitutive heterochromatin in a resting nucleus. Is that true? Does that mean that the centromere sequences have no function in non-dividing cells? So, the centromeres must have sequences which only help them to bind to microtubules via t...
by Adz795
Sun Dec 04, 2011 9:52 am
Forum: Cell Biology
Topic: Microtubules & pseudopodia
Replies: 1
Views: 2151

Microtubules & pseudopodia

I have this question.
Are microtubules in any way involved in the formation of pseudopodia?

I am confident they are not, I haven't come across anything like that yet. Please tell me if you think otherwise.
by Adz795
Thu Nov 24, 2011 10:46 am
Forum: Cell Biology
Topic: Plant vacuole
Replies: 8
Views: 10911

Re: Plant vacuole

Yes, I got what you wanted to say.
What you explained simply meant that the vacuole has more water/volume than the cytoplasm.
Thanks for that. From this I may suspect that the tonoplast is not just any lipid bilayer and that it is is more adept at handling tonicity than the plasma membrane.
by Adz795
Thu Nov 24, 2011 9:58 am
Forum: Cell Biology
Topic: Plant vacuole
Replies: 8
Views: 10911

I don't get the consistency issues. What do you mean?
Is there a difference in the viscosity of vacuolar and cytosolic fluids? How consequence does that have?
by Adz795
Wed Nov 02, 2011 12:34 pm
Forum: Human Biology
Topic: Mitochondrial inheritance
Replies: 3
Views: 5345

oh thanks. Now that makes some sense.
by Adz795
Sun Oct 02, 2011 2:31 pm
Forum: Cell Biology
Topic: Recombination
Replies: 3
Views: 3410

Oh. These pseudo-homologous regions must not contain sex-specific genes. Am I right?
by Adz795
Sun Oct 02, 2011 1:11 pm
Forum: Cell Biology
Topic: Recombination
Replies: 3
Views: 3410

Recombination

This is a basic question I hesitate to ask but, do the sex chromosomes (X & Y in humans) undergo recombination during meiosis in males?
I can't think of a Y undergoing a cross-over with an X..
Does it take place..?
by Adz795
Wed Sep 21, 2011 4:04 pm
Forum: Human Biology
Topic: When is the brain considered fully developed?
Replies: 4
Views: 4187

Re: When is the brain considered fully developed?

Yeah, JackBean. Some statistics, on which I based my previous statement, say that complete brain development takes place by 6 years. By one other statistics, the brain completes 80% development by six. Here it is: m hhm... I am sorry lazygorillas, I am not quite sure which statistics to follow. I sh...