This question was taken from the August 2008 exam, question # 19 (nyslivingenvironment.net). Reproduction is defined as the production of offspring. Sexual reproduction involves two organisms DNA combining, while asexual reproduction involves only a single organism, which creates genetically identical offspring. In this picture, how many organisms are involved? One. Bonus points for this question (answer in the comment box): Once this stem is cut and put into water, what is the name of the process by which it grows?
This whole process is pretty cool, if you think about it. If you want to make
more than one plant, depending on the type of plant, all you have to do
is cut the stem and put it in water and, voila! Did you know you can
grow some vegetables like this? Carrots, for example, do reproduce
sexually (they have seeds that you plant, with DNA from two parents),
but you can also "clone" a carrot, by cutting the top off (keeping the
greens on), putting it in a cup of water with a clear bag on top,
covering, and letting the roots grow. Once the roots have grown and new
green begins to form, you can plant your carrots in the ground and let them grow again naturally. (photo taken from http://www.photoree.com/photos/permalink/762557-62545923@N00)
adventitious roots
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