An example of a human disorder that is caused by a dietary deficiency rather thand heredity is? 1. Phenylketonuria 2. Sickle-cell anemia 3. Gaiter 4. Tay-sachs disease

Goiter

Explanation:

Phenylketonuria, Sickle-cell anemia, Tay-sachs disease are human disorders that are caused by heredity. Goiter, which must have been misspelt as “Gaiter” in the question is an example of human disorder that is caused by dietary deficiency.  

Goiter is a condition in which the thyroid gland becomes swollen or enlarged. Goiter is usually caused as a result of iodine deficiency in the diet a person gets.

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.

c. establishing proper sleep hygiene