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1

From Whittle and Johnston (2006): Specifically, human epidemiological data and/or nucleotide substitution rates of selectively neutral DNA (which equals the mutation rate, Kimura, 1983; Miyata et al., 1987) have shown that more mutations occur in the male than in the female germ line for numerous animal taxa (e.g. humans, mice, chickens, and sheep) and ...


1

D-Glucose and L-Glucose have similar names only because we humans decided that's how we should name sugars; they have as much in common as, for example, D-Glucose and D-Allose (one chiral bond is different). So, in essence, organisms don't synthesize L-Glucose for the same reason they don't synthesize D-Allose: they have no use for it. Its similarity to ...


2

Well, that depends on your home. ;) I think it is not an easy process. There are two main methods that are used to genetically modify plants: Using the bacterium, Agrobacterium tumifaciens, as a vector for the DNA. Agrobacterium has the ability to infect plants and insert DNA into a plant's genome. It causes crown gall tumours in natural infections. This ...


1

Yes, It is. I found this Awesome video on youtube: http://www.youtube.com/watch?v=MiZ35pkxG-k How to do: Materials: Planter Soil Table Salt Seeds(fern) Petri Dish Vinegar Water 1.5V Battery Wire Human hair with follicles Procedure: In a pertri plate add 10mL of Vinegar with 0.1g Salt. Mix the seeds to the solution Put the human hair ...


1

I suspect the answer to this, is that in looking at agricultural fruits you are looking at plants that have been the subject of artificial selection, and the tree vs vine thing is a practical limit, but not the driving factor... for instance a jack fruit grows on tree and is watermelon sized... I think if you look at something like a pumpkin, you will ...


1

Some Differences are listed here Please consider reading these articles (article 1, article 2)


8

They are basically conjoined apples which share a common stalk. They are rare but do happen. Here is an article of one discovered in a backyard. conjoined apple discovered in a store (reference) It apparently happens because of bad weather conditions, stress and insect damage. Fused fruits are also found in the case of cherries, watermelons, peaches ...


3

Everything has a life span. When it comes to trees, there are significant variations between species (see here some examples). Apart from the external factors, these variations seem to be related to telomeres length and telomerase activity [1]: The results from this study support the hypothesis that both increased telomere length and telomerase activity ...


2

The answer to this could be that there are many factors contributing to the length of the life of tree species. Climate: You can see that trees that have a reputation of becoming really old live in environments that have low moisture levels and much sunlight over the course of the year. For example, you can see that the most long-lived trees in America ...


0

Synthesis from chemicals in organisms is fundamentally different from laboratory synthesis of chemicals. In the latter, more than one chemical species or other unwanted byproducts are usually formed, whist living organisms use enzymes, that are often stereo-specific. This means that they usually can bind, in the case, produce, only one stereo-isomer. To ...



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