when a human embryo is developing, the embryo produces a special type of hemoglobin not found in infant, child, or adult blood. why does an embryo produce a different type of hemoglobin from an infant, child, or adult?
a. the embryo has different genes from the infant, child, or adult.
b. development and differentiation result in the loss of certain genes.
c. humans have genes for the different types of hemoglobin, which are expressed at different times

Option-C

Explanation:

Hemoglobin is a protein involved in carrying the oxygen from one part of the body to another by binding it. The hemoglobin structure is found in many forms known as alpha, beta, gamma, delta.

These hemoglobin proteins are coded by different genes controlling the formation of these structures.

These structures are present in different forms at different developmental stages due to expression of different genes at a different time of development like the fetus has gamma chain hemoglobin but adults posses only alpha and beta chain proteins.

Thus, Option-C is correct.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: