Answer:
A) A transgene integrated into a heterochromatic region of the genome.
Explanation:
This is most likely the reason why the transgene is not expressed in the fifth cell line. It is likely that the transgene was integrated into a heterochromatic region of the genome. Heterochromatin consists of genetically inactive satellite sequences, and many of these are repressed to various extents. Moreover, because this is a tightly packed form of DNA or condensed DNA, it is inaccesible to polymerases and thus not transcribed.
Nutrients move through<span> the </span>ecosystem<span> in biogeochemical cycles. A biogeochemical cycle is a circuit/pathway by which a chemical element </span>moves through<span> the </span>biotic<span> and the </span>abiotic factors of an ecosystem. It is inclusive of thebiotic factors<span>, or living organisms, rocks, air, water, and chemicals.</span>
None, the answer would be 2500
<span>Age structure would help scientists determine if the problem exists with young or old dolphins.
The age structure shows the distribution of the ages of the individuals in a population. This not only shows the type of change taking place in the population (increasing, decreasing or staying the same) but also is able to help us relate problems to ages. By determining the which age group is more stressed, the scientists will be able to narrow down the causes of the stress and create more accurate hypotheses.
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Answer:domain bacteria, kingdom, eubacteria
Explanation:
