D because this is the process of when the nitrogenous bases are going to match each other to form our DNA sequence
For example salt in water ,salt would dissolve ,you won't be able to see it but if you taste it it would still be there
dissolve /disappear but still be there
Darwin finally consolidated all of his observations into his famous book
On The Origin of Species, drastically and controversially altering the
scientific view on the biological origins of life. I learned this a little while ago in my school, I kept notes!! Hope this helps!! <3
Answer: Substances that are protein based cannot cross the lipid cell membrane, but can exert their effect by binding to the proteins based receptors present on the lipid bilayer.
Explanation:
Hormones such as calcitonin , Parathyroid hormone and pituatry horomones are proteins and water soluble.They cannot cross lipid bilayer but can bind to ligand binding protein receptors.
These receptors are protein macromolecules that are specific in nature for specific hormones.
After binding to the receptors, these hormone-recpetor complexes activate second messengers and regulate the downstream effects.
