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Basically because your skin has several layers to it (see link, below), and the layer that has the blood vessels capable of bleeding in it is further down than a superficial scrape would affect.
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Answer:
A. All of the offspring plants will have purple stems.
Explanation:
All of the offspring plants will have purple stems because both the parents have the same stem color i. e. purple so if they mate with each other , the offspring produce have the same color of stem. Both parents plants are heterozygous which means that they are different from one another in some characteristics but also some similarities such as stem color etc. So all the offspring produce have purple-stemmed.
The nucleotide sequence of the DNA is GACT or RNA, which is the molecule. Hope this helps :)
