<u>Answer:</u>
The type of change that was responsible was “histone acetylation or DNA methylation”.
<u>Explanation:</u>
- Histone acetylation is the process that involves the epigenetic adjustments that functions in the transcription process while regulating DNA.
- Histone acetylation or DNA methylation is the major component of the gene regulation while passing from one generation to another.
- The Acetyl groups are hooked up to lysine’s in histone tails so their charges play a vital role to avoid the histone tail to bind with the other molecules.
Instincts are the biologically determined, innate patterns of behavior.
Instincts are the intuitive feeling of a person towards a certain stimuli. These are inborn impulses. There are 6 basic human instincts. These are seeking, anger, fear, panic-grief, care, pleasure and play. Amongst all, seeking is considered to be the most powerful instinct.
Innate behavior is the habit that is present inside an organism by birth, may be genetically. No prior learning or experience is required for it. Examples of the same are: reflexes, taxis and kinesis, fixed action patterns and circadian rhythms. When a baby suckles after birth, it is an innate behavior.
To know more about instincts and innate behavior, here
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Answer:
This is because fluids have a polar nature, so they couldn´t cross the lipidic bilayer that constitutes the plasma membrane
Explanation:
Plasma membranes are contituted by lipid bilayers. These kind of compounds are hidrophobic (they reject water) and don´t permit the freely passage of hidriphilic molecules that can disolve in water, constituing fluids. Because of that cells developed transport mechanism like endocytosis.