NEED HELP ASAP WILL GIVE BRAINLIST One way eukaryotes stop gene expression is by stopping the "splicing process" of mRNA. What is occurring during the splicing process that finalizes the DNA?

introns are added

introns are removed

exons are removed

exons are added

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Draw the structure of dna nucleotide with adenine as nitrogenous base

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils