1. Phosphate
2. Pentose sugar
3. Nitrogenous Base
Answer: protein structure
Explanation:
In Sickle-cell anemia, the gene sequence of hemoglobin is changed in its sixth position due to the substitution of glutamate with valine.
So, since glutamate, an amino acid soluble in water due to its hydrophilic side chain is substituted with valine, an amino acid that has a hydrophobic side chain insoluble in water or bloodstream; the resulting hemoglobin protein is altered in structure (sickle shaped) and unable to bind and transport oxygen efficiently to the various body parts.
Answer: Because the cell will expand and burst
When a cell is frozen, that means the cell temperature is going to be lowered extremely. Ice has more volume than water which is why it floating inside water. That's why if you put water in a plastic container then freeze it, the container will get pressured and swollen. If the container is not elastic enough(metal, glass), it will burst.
Same like that, the cell that got frozen can be burst too.
i think it's 2 and 3
as if might impact the hormone
The answer is D (i’m pretty sure)