Answer:
The correct answer is option C. "pleiotropy".
Explanation:
Pleiotropy is a characteristic that defines a gene that is responsible for the development of multiple traits, which often seem to be unrelated. Sickle-cell disease is an example of a disease caused by the mutation of a pleiotropic gene, resulting in the person developing red levels, blood clots, and strokes. Other example is the disease phenylketonuria, at which the affected person suffers from a mental disorder and reduced hair and skin pigmentation by a single mutation in a single gene on chromosome 12.
Answer:
Explanation:
My best bet is DNA methylation at the site of Tweedledum's leptin gene or Histone Acetylation at the site of Tweedledee's gene.
B/c DNA methylation is a process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When located in a gene promoter, DNA methylation typically acts to repress gene transcription. So this is probably repressing Tweedledum's leptin gene trancription which is not happening in Tweedledee.
Additionally, Histone Acetylation at site of Tweedledee's gene increases her trancription b/c Histone acetylation causes DNA to be more accessible and leads to more transcription factors being able to reach the DNA. Thus, acetylation of histones is known to increase the expression of genes through transcription activation.
Answer:
1. It is now illegal to import or purchase Burmese pythons in Florida. Probably, at some point, python owners who no longer wanted to care for them let them go in the Everglades. By the mid-1990s, the pythons had established a breeding population.
2. There have been no human deaths from wild-living Burmese pythons in Florida. Overall, the risk of attack is very low. ... The simplest and most sure-fire way to reduce the risk of human fatalities is to avoid interacting with a large constrictor.
Explanation:
Burmese pythons are not poisonous snakes, however they are constrictors, coiling around their prey and squeezing the life out of it. The officials in the state of Florida are extremely concerned about the invasion of these large snakes and their ability to take over most of the Everglades.
