Yes, all polypeptides have tertiary structures. All proteins have primary, secondary and tertiary structures. However, quaternary structures only arise when a protein is made up of two or more polypeptide chains. Hope this answers the question. Have a nice day.
I believe once the vesicle has budded from the golgi body the clathrin coat is lost. During budding the membranes and proteins are moved around the cell in small vesicles. A protein coat aids the budding of these vesicles from donor membranes, The major type of coat used by the cell is comprised of clathrin; a three legged protein that can form lattice-like coats on membranes destined for trafficking.
They are not invertebrates so #1 is out
They are not endangered so #3 is also out
Also the argument that they are similar to humans is weak so I would recomend selecting # 4 because this seems like a reasonable ethical decision
this is just an educated guess though, good luck!
Answer:
The female and male sex cells or gametes are known as eggs and sperm. These cells are formed inside the sex glands and are destined to unite during the fertilization process in order to carry out reproduction in humans.
the male sexual cell is the spermatozoa, they are mobile and can move using their flagellum. Sperm remain alive for 2 or 3 days in the female genitalia. THESE CELLS ORIGINATE INSIDE THE TESTICLES.
Ovules are large, spherical and immobile cells and generally a single egg matures every 28 days, unlike sperm that are generated in large numbers.
Explanation:
hope this helps :)
