Meiosis is a process used to make gametes such as sperm or egg cells. These gametes have half the number of chromosomes as the original parent cell. Hence, meiosis reduces the number of chromosomes in daughter cells and can be called "reductive division."

Janelle

Ani, When using a DMM to measure the current, you need to plug the DMM leads into the proper jacks on the DMM which are marked for measuring current and you should always start off by setting the DMM to the highest range first when making your measurement. If there is little or no reading, then you ...

Hi Nonie, This topic sounds like it can be a very interesting one to learn about. When I did a bit of searching on the topic I seem to come across the common phrase of "Antimicrobial Pesticide" when describing the classification of bleach as a disinfectanct. I've provided a couple of inter...

Hi Maxamillion, I thought you might want to have a look at these web sites as "food for thought". I did a search on measuing vitamin C in fruit juice. It might give you some ideas about how you might want to design your experiment. http://www.chemheritage.org/educationalservices/pharm/chem...

Ivy, You may want to have a look at some of the web pages on this website that talk about putting your ideas together in order to design your experiment and your science project. Have a look at these links: https://www.sciencebuddies.org/mentoring/project_scientific_method.shtml https://www.scienceb...

Dear Marquise, You might also want to read about how your camera works from the user manual that it came with. (If you can't find it somtimes the web site from the company that made it has them available on line) I believe that most digital camera flashes only provide enough light to illuminate an o...

Dear Joseph, I believe that the amount of voltage is most likely directly related to the number of turns. That is the more turns the greated the voltage. Here's a document that might help to explain this concept: http://www.abdn.ac.uk/physics/s6/labeandm.pdf Check out the section that says: If the l...

Dear Nattie, You might want to try performing your experiment a little bit differently to acheive your result. Perhaps you could pre-measure an amount of liquid before you put it in the diaper. You can probably determine the weight of the liquid based on the volume and it's density. Then add it to t...

Dear Alaa1991, Sometimes the answers to your questions can be found right in you own backyard. It seems that the experiment you have chosen is one already on the Science Buddies website. I also found a similar description on another web site. Here are the links for both of these. https://www.science...

If the fluorescence is due to GFP, then you may need to use an ultraviolet light source when viewing the C. elegans under the microscope.

I hope this helps.

Sincerely,
Janelle

Dear Greg,

I came across an interesting web page that discusses these topics.

http://amasci.com/elect/vwatt1.html

After you've read a bit about the terminology of this topic. perhaps you can tell us about the experiment you're planning.

Sincerely,
Janelle

Dear bombae09, It sounds like you may want to first learn about yeast in general before designing your experiment. I believe that you have an interesting topic to work with and you just need to figure out what makes yeast special and what unique qualities it has. Afterwards you can then decide how t...

Dear suziest I came across a variety of websites that discuss this topic. One of the sites contained some interesting facts you might find useful see: http://www.users.qwest.net/~taaaz/AZgas.html Here's a small excerpt from that site: Gasoline volume changes approximately 0.125% for every 1ºC chang...

As an alternative you might consider researching about Van de Graaff generators. Here's a link to a website that offers a variety of topics on this subject.

http://amasci.com/emotor/vdg.html


Sincerely,
Janelle

Perhaps coefficient of drag values might play a part in the gas consumption versus wind speed. Some of these web pages show the effect of a change in the mileage as a result of changing the coeffient of drag. Perhaps you could find a formula that relates mileage versus wind speed for differing value...

Hi Alyssa, I was able to locate a couple of web pages that might help you out with your topic. http://en.wikipedia.org/wiki/Alkali http://www.chemtutor.com/acid.htm Also , the science buddies website has some good web pages on preparing your report: https://www.sciencebuddies.org/mentoring/project_r...

Dear Alex I came across some interesting material which you might find useful in learning about the measument of sound levels. Here's a very good brochure that describes how sound levels are measured. http://www.bksv.com/pdf/Measuring_Sound.pdf Also, you can check out this company's web site for the...

Dear Swordfish: After searching my library I was able to locate a journal article that you might find interesting. Try looking it up at your local library. The article includes a number of references as well. Title: Summer use of a small stream by fish and crayfish and exchanges with adjacent lentic...

Dear Alex:

This sounds like a fascinating topic. There are various ways to research and experiment with this topic. I came across a web page that you might find useful in your exploration.
http://www.explorelearning.com/index.cf ... ourceID=43


Yours truly,
Janelle

Scott:

I have searched the web and this website seems to offer a good description. Here's the link to the website:
http://www.everything2.com/index.pl?node=bacteria

Yours truly,
Janelle

Dear Leon: Sounds like you have chosen a very nice topic for your research project. The survey can provide information based on the criteria that you set forth in your experiment. You have to ponder age, gender, and type of sport. For example, you might consider using the male, at 10 year age interv...