Answer:
Disruptive selection
Explanation:
Disruptive selection -also called diversifying selection- is a type of natural selection where individuals with the smallest and largest values of the trait are favored while those with intermediate values are at a fitness disadvantage. This selelction goes against the average individual in a population.
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.
The answer is B. Cell membrane and cytoplasm
Answer:
Metamorphic rocks develop when heat and pressure convert an existing rock into a new rock. Contact metamorphism transpires when hot magma converts the rock that it contacts. Regional metamorphism remodels large areas of existing rocks under the enormous heat and pressure created by tectonic forces.
Explanation:
