Answer:
a) properties of the molecule as a result of abnormal interactions between adjacent hemoglobin molecules
Explanation:
In sickle cell disease, for example, a nonpolar amino acid (valine) replaces a polar amino acid (glutamate). This substitution of amino acids reduces the hemoglobin’s water solubility. The mutated hemoglobin molecules form long, stiff and rod-like crystals inside red blood cells which are otherwise not formed by normal hemoglobin molecules.
These abnormal crystals of hemoglobin cause the deformation of RBCs making them sickle-shaped that cannot properly squeeze through narrow blood vessels. Therefore, the substitution of single amino acid results in abnormal interaction of two or more hemoglobin molecules that are not exhibited by normal hemoglobin molecules.
The discovery by JJ Thompson who proved that all electrons are the same thus changed Dalton's atomic theory
I hope this helps
Answer:
2 New DNA molecules that are genetically identical to parental DNA molecule. (not sure what u mean by original vs new. If u are talking about new DNA molecules, after DNA replication, 2 new DNA molecules are formed. However, if you are asking about DNA nucleotide sequence in the genome, after DNA replication, 2 genetically identical molecules of DNA are formed.)
Explanation:
Semi-conservative DNA replication occurs whereby original double stranded parental DNA molecule separates and act as templates for the synthesis if new daughter strands. Resulting in the newly synthesised DNA to be made up of a parental strand and a daughter strand each.
Answer: Having liver disease
Living in a region without a lot of sunlight
Explanation:
Vitamin D is gotten from sunlight i.e the exposure of body to sunlight helps synthesis vitamins D. In area with low sunlight when the body
Cannot trap enough sunlight to produce vitamin D the body could have low vitamin D leading to its deficiency.
An impairment to the skin leads to an inability of the skin to synthesis it.
Vitamin D is transform to active for in the liver hence a damage to liver will lead to vitamin D deficiency.
Definitely include Ricket, softening of bone in adult.