1) DNA wrap itself around the histone protein due to the negative charge on the histone, that packed DNA tightly so that it can't be used in protein synthesis.
2) Prosthetic groups are itself co-factors that bind tightly to enzymes or proteins. they can be organic or metallic ions and attached to proteins by covalent bond.
3) The transfer of mitochondrial DNA (mtDNA) from mother to her offspring is known as maternal inheritance. only female can transmit mtDNA beacuse, it can be transmitted through female eggs only. One can inherit mtDNA from exclusively their mother.
Rock B has a fine grainy texture and small crystals
Explanation:
1. still hasn't turned into sedimentary rock, or metamorphic. Its most likely gonna be igneous and Igneous rocks have grainy texture and small crystals since its still developing
