Answer:
E) there are at least two groups, one of which does not receive the experimental treatment.
Explanation:
A controlled experiment is an experiment that is manipulated by the scientist to suits his methods. They are conducted to test a single variable at a time. It helps to minimize the random effect of wild environment on the experiment.
In a controlled experiment there are two groups; one group receive treatment in certain proportion it is referred to as controlled group while the other group are exposed to the standard environment known as experimental group.
The wind from the air and nature its self like hurricanes
The answer is
D. Zygote
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Genes close to each other- Strongly Linked genes
Genes on different chromosome- unlinked genes
Genes apart from each other,but on same chromosome- linked genes
Explanation:
Linkage is defined as the tendency of genes located on same chromosome to be inherited together.
Genes located on different non-homologous chromosome are called unlinked genes.
Genes located on same chromosome are called linked genes.
Genes located close to each other are strongly linked as tend to show complete linkage.
Genes located on different chromosome tend to show incomplete linkage.