which of the following describes the structure formed when a probe
hybridizes to a gene?

a. a double-stranded dna structure in which one strand is the probe.

b. a single-stranded structure consisting of labeled dna from the
probe.
c. a single-stranded structure consisting of unlabeled dna from the
gene.

d. a double-stranded dna structure in which different genes are
linked together.

Which of the following is a common response to cell signaling?

The steps in the formation of extrusive igneous rocks are listed below in an incorrect order: 1. rock melts due to high temperature. 2. rock is buried deep under earth's surface. 3. magma is forced out of earth's surface during volcanic eruption. 4. lava cools and crystallizes to igneous rock. which of these best shows the correct order of steps in the formation of extrusive igneous rocks? 1, 3, 4, 2 2, 1, 3, 4 3, 4, 2, 1 4, 2, 1, 3

Eutrophication caused by human nutrient pollution.