Answer:
option 1
Explanation:
In assemblying the nucleosome, this reaction occurs in two main steps. the H3 and H4 are recruited first to the DNA in pairs forming the H3/H4 tetramer; meaning two of H3 and two of H4. This gives rise to the nucleosome precursor. Then after this, the dimers of both H2A/H2B are recruited to this precursor, to give rise to the octamer structure around which the DNA is wrapped.
Answer:
The correct answer is - B. It introduces new alleles into a population.
Explanation:
Gebe flow or migration is the transfer of the genetic material or transfer of genes from one population to another population of the same species. Gene flow is also responsible for the genetic change that leads to evolution.
Gene flow can contribute in various ways such as migration or vertical gene transfer parent to progeny, however, it can lead to evolution directly by introducing new alleles into a population.
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I think it’s zero, it might be zero
Answer:
Proteins, Liver, Osmotic, Fluid, Into The Blood, Decrease.
Explanation:
Blood is considered a colloid because it contains proteins in the plasma.
Most of these are produced by the liver.
Collectively, these substances exert osmotic pressure and prevent the loss of fluid from the blood as it moves through the capillaries.
The pressure exerted by the plasma proteins is called colloid osmotic pressure.
This force is responsible for moving fluids into the blood and preventing excess fluid loss between blood capillaries and the interstitial fluid.
If plasma protein levels decrease, colloid osmotic pressure will decrease.
I hope this answer helps.
