Humans are able to produce 20 different amino acids, which have side chains with differing properties. How does the variation in amino acids' side chains affect a cell?
O It allows for a wide variety of proteins to be produced that will carry out a wide variety of functions.
It causes the cell to produce a wider variety of proteins that all carry out the same function within the cell.
O It requires the cell to acquire more energy to accommodate a wider variety of chemical bonds among side chains.
It results in individual proteins that can each carry out a wide variety of biochemical processes within the cell.

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

the question isn't complete here so i can't right an answer '_'