How does an allele cause a trait in an organism?
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a. the allele is a code to form a type of gene.
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b. the allele is used during transcription to make dna.
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c. the allele is used by proteins to create chromosomes.
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d. the allele causes a certain type of protein to form.

What type of weather does tropical continental air bring in summer? hot and cloudy cool and sunny hot and sunny cool and cloudy

The pacific plate is an oceanic tectonic plate. how did a hot and the pacific plate interact to form the hawaiian islands?

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell