Cell Bio Exam III

The _________ pathway of apoptosis is one in which external stimuli activate apoptosis via a signaling pathway.

What is a major influence in determining the organization and behavior of actin filaments inside cells?

The random assortment of chromosomes at anaphase I accounts for a large amount of the _________ within a species.

What is required for the separation of homologous chromosomes at anaphase I of meiosis I?

What provides the energy that drives sarcomere contraction?

Covalent linkage to what highly-conserved molecule marks proteins for destruction?

________ proteins share considerable sequence homology with actins and accelerate the polymerization of actin filaments.

During which stage of prophase I does the bulk of oocyte growth occur?

Which element of the cytoskeleton is found in the cytoplasm and the nucleus?

A complex of exonucleases that degrades mRNAs is called the ______.

During which stage of meiosis do the chromosomes become recompacted after interkinesis?

The extracellular messenger protein with an ability to kill tumor cells that also serves as an apoptotic stimulus is:

Messenger RNA editing is an example of gene expression at the _________ level.

What extends from the methylguanosine cap at the start of an mRNA to the AUG initiation codon?

Which molecules and components are found within the plant cell preprophase band? (Select all correct choices)

How were nitroglycerine's therapeutic benefits discovered?

Most protein kinases commonly transfer phosphate groups to which amino acid(s)?  (Select all correct choices)

In flowering plants, which gene group(s) are needed for petal formation? (Select all correct choices)

What can cause the stockpiles of intracellular calcium ions to be depleted?

The point at which the neuron axon terminus and the muscle fiber make contact is called the _________.