Fill in the blank rna primase synthesizes rna primer that attaches itself at the initation point of replication. rna primer constructed during dna replication needs to be replaced because rna differs from dna it contains (adenine, cytosine, uracil) instead of ,guanine, thymine)

What food can provide the body with a quick source of the energy needed to carry out cell functions (a) whole grain bread (b) ground hamburger (c) vegetable oil (d) whole milk

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?