You need more context for people to answer the question. We can’t respond with so little. We need to see the sentence so we can answer you problem.
Trace fossil because a trace fossil is a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself.
ANSWER: C. Complementary base pairing occurs only between the probe and the target gene.
Is this science?? Also may I hv options.
Adenine<span> (A)</span>pairs<span> with uracil (U)</span>