In fruit flies, red eyes (R) are a dominant trait and white eyes (1) are
recessive. If a homozygous red eyed fly was crossed with a white
eyed fly, what percent of the offspring would be homozygous
recessive?
Select one
25%
0%

50%
100%

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

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.

The basic types of tissue in the human body are