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:
For a household pet, a bearded dragon is better because of its durability and its ability to form bonds with people over time.
Explanation:
Bearded dragons also look cooler,, im more partial to moniter lizards myself but bearded dragons are awesome reptiles. Im not sure if that was what you were asking though :,)
They lose water by evaporation on their skin and respiratory surfaces
Answer:
From smallest to largest:
Capillaries, alveoli, bronchi. bronchioles, trachea, pharynx, nasal cavity.
It is twisted to create a greater surface area for digesting and to increase the nutrient absorption.