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.
Explanation:
Genes are located on chromosomes, which are large pieces of DNA contained in a eukaryotic cell's nucleus.
Answer:
Explanation:
Ozone is a gas composed of three atoms of oxygen. Ozone occurs both in the Earth's upper atmosphere and at ground the level.Ozone at ground level is such a harmful air pollutant, because of its nasty effects on people and the environment, and it is the main ingredient in a type of air pollutant called “smog."
Answer:
The answer is C, 40,000.
Explanation:
You can obviously tell that 400 is too low... that's one meal for all of the turtles! They would need 40,000 minnows because it's a stable number. They can reproduce, and keep the population up. 4,000, though, is too low because they wouldn't have enough time to reproduce and continue to keep the population alive. Therefore, 40,000 should be a stable population.
Answer:
The correct answer is chunking.
Explanation:
Chunking is a term signifying the procedure of taking single pieces of information or chunks and aligning them into bigger units. By aligning each piece into a large whole, one can better the amount of data one can remember.
Generally, the most common illustration of chunking takes place in phone numbers. By distinguishing dissimilar single elements into bigger blocks, information becomes easier to recall and retain.
