Answer:
Amino acids are the building blocks of proteins. protein is a chain of amino acids connected together
Correct option - They have a crystalline structure.
Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis. ... The spermatids are transformed into spermatozoa (sperm) by the process of spermiogenesis. These develop into mature spermatozoa, also known as sperm cells.
The first option is correct:
When the bacterium reproduces, it passes the gene for human insulin to its offspring. The offspring form a colony of bacteria that contain the gene for human insulin, which can then be used to produce insulin for a person with diabetes
