A 1.5-kb fragment of DNA is cloned into the EcoRI site of a plasmid vector that is 5.5-kb long. The plasmid vector is then transformed into bacteria. If the plasmid DNA is then extracted from a single bacterial colony and digested with EcoRI, what digestion products will be produced if the plasmid lacks the fragment?

A) one 5.5-kb fragment
B) one 1.5-kb fragment
C) one 7-kb fragment
D)one 1.5-kb fragment

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.