Although cells perform mitosis almost perfectly every time, sometimes mistakes do occur. What do you think would occur if one pair of sister chromatids did not separate during anaphase? Describe both the effects on
number of chromosomes per daughter cell and, since the chromosomes are involved in producing proteins,
how protein production could be altered.

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

Identify the examples in which sam interacts only with natural resources

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.