Search found 50 matches

by josem
Wed Aug 13, 2014 7:27 pm
Forum: Evolution
Topic: Chicken or egg formed first
Replies: 6
Views: 14462

Prokaryote never be chicken. But I mean chicken ultimately evolved from prokaryote within time frame of few hundred million years. So very very distant ancestor of chicken is a prokaryote.
by josem
Sat Aug 09, 2014 5:21 pm
Forum: Physiology
Topic: Is there any difference between different fertilizers?
Replies: 1
Views: 11205

Same thing can be consider in case of baby foods,which may contain artificial flavors, minerals and vitamins(may be chemically synthesized). But all have chemically similar to its natural counterparts. By the way baby food may contains preservatives, which may harmful.
by josem
Mon Aug 04, 2014 3:49 pm
Forum: Physiology
Topic: Is there any difference between different fertilizers?
Replies: 1
Views: 11205

Is there any difference between different fertilizers?

Organic and chemical fertilizer ultimately providing the same elements i.e. nitrogen, potassium, phosphorus and other macro and micro nutrients to the plants. There is no difference in atomic structure of elements from both sources. For example, whether nitrogen from organic or chemical fertilizer c...
by josem
Fri Aug 01, 2014 7:53 pm
Forum: Microbiology
Topic: staphylococcus aureus and biofilm formation
Replies: 3
Views: 12507

Bacteria resistant to antibiotic means it produce some enzyme ( eg. Beta lactamase) or other mechanism against antibiotic. I think normal microflora of gut form biofilm. Biofilm formation isn't a sole factor to confer antibiotic resistance.
by josem
Wed Jul 23, 2014 7:14 pm
Forum: Cell Biology
Topic: cell plate formation
Replies: 2
Views: 6783

cell plate formation

During the division of plant cell, the cell plate form exactly or approximately at the center of dividing cell. What process position cell plate to the center of the cell.
by josem
Wed Jul 23, 2014 7:00 pm
Forum: Microbiology
Topic: A theoretical question - Genetic manipulation
Replies: 4
Views: 13778

Scientists have already created a bacterium from chemicals.
by josem
Wed Jul 23, 2014 5:33 pm
Forum: Microbiology
Topic: rabies virus and tetanus bacteria
Replies: 5
Views: 7310

Rabies virus slowly travel through peripheral nervous system from the site of bite to brain. It will take usually some week. When it reaches brain virus multiply rapidly, from brain it enters salivary glands. In vaccinated dog virus never reaches the brain. So no virus in the saliva.
by josem
Tue Jul 22, 2014 8:45 pm
Forum: Microbiology
Topic: Multicellular prokaryote
Replies: 28
Views: 77293

Is unicellar means gather nutrients and reproduce independently? Is filamentous algae uni or multicellular? Which is the margin between uni and multicellularity?
by josem
Fri Jul 18, 2014 3:21 am
Forum: Human Biology
Topic: Human eye resolution.
Replies: 0
Views: 3020

Human eye resolution.

How to relate limit of human eye resolution (0.1mm) to pixel per inch (ppi) of a LCD display.
by josem
Thu Jul 17, 2014 7:14 pm
Forum: Evolution
Topic: Chicken or egg formed first
Replies: 6
Views: 14462

Chicken or egg formed first

Chicken or egg formed first is always a dilemma if we consider it for only few thousand years. If we digging the phylogeny of chicken (a bird) for some hundred million years, which is evolved from reptiles, digging the phylogeny from reptiles shows following order amphibians, fishes, invertebrates f...
by josem
Fri Jun 27, 2014 6:06 pm
Forum: Physiology
Topic: drink water, orange juice or Cola before eating?
Replies: 17
Views: 76453

Drinking too much cola is not good for health. Because it contains phosphoric acid which reduces the bone density and also the reason for chronic kidney diseases. Drinking citrus juices is good for health, because it contains lot of vit C. I think if pH increased due drinking of water, there might b...
by josem
Wed Jun 25, 2014 6:23 pm
Forum: Cell Biology
Topic: Electron transport chain
Replies: 3
Views: 6083

Thank you very much for the reply.