Which form of genetic material initiates RNA interference?

A) double-stranded DNA

B) double-stranded RNA

C) single-stranded DNA

D) single-stranded RNA

Ileocecal sphincter tone decreases (relaxes) after distention of which structure? Colon Esophagus Ileum Pharynx

On land, the adult frog has pulmonary respiration only.

Describe how the host is damaged by the parasite

What takes place in organelles called chloroplasts?

True or False? When a prediction is proven true, the related hypothesis is true.

Suppose that a given gene undergoes a mutation to its dominant allele such that two out of 100,000 offspring exhibit the new mutant phenotype. Assuming that these offspring are heterozygous, what is the mutation rate for the gene

Which nitrogenous base is part of an RNA molecule but not a DNA molecule? Question 5 options: uracil guanine adenine cytosine

What happens first at each origin of replication? A: enzymes kill viruses B: enzymes remove bases C: enzymes unwind DNA D: enzymes eat nucleotides

How many times does your heart in a day, if it beats 75 times a minute?

One premise of natural selection is that in a population, more offspring are produced than the environment can support. O True O False