Honors Biology: Unit 10 - Cell Cycle Check & Challenges

new nitrogen base pair

A(n) ________ will be produced to fix the problem, if there is one.

Anaphase

________ is when the spindle fibers pull the sister chromatids apart.

sugar phosphate bond

What is sealed off? Answer with a single words or term.

Prophase

________ is chromosome condensation and the formation of spindle fibers drawing the sister chromatids to opposite poles.

Apoptosis

________ may occur if the cell is too far beyond repair, which is basically a cells suicide.

Metastasis

What is the process in which a tumor grows, may interfere with surrounding tissue, and cells may break off and spread around the body? Answer with a single words or term.

Telophase

________ occurs when two new nuclear membranes form, the spindle fibers disappear, the chromosomes uncoil, and the cell begins to split.

sister chromatids

The ________ are drawn to the opposite poles, then they are moved back to line up in the center of the cell during metaphase, forming the metaphase plate.

Cytokinesis

________ occurs later, with the division of the cytoplasm (cell); it is technically not mitosis.

Metaphase

________ is the lining up of the replicated chromosomes down the middle, forming a(n) ________ plate.

enzyme

The ________ recognizes the mismatch of base pairs, breaks the sugar- phosphate bonds, and removes the damaged DNA.

Histones

________ are involved in gene expression because nucleosomes are wrapped around ________ proteins.

major events of mitosis

The ________ can be summarized as PMAT.

DNA replication

Explain why ________ is important in cell division.

tightly packed structure

Histones are involved in gene expression because nucleosomes are wrapped around histone proteins. This ________ can turn off certain sections of DNA by excluding the enzymes involved in gene expression.

DNA polymerase

Meanwhile, ________ can only extend a primer in one direction.

Chromosome segregation

________ occurs when the sister chromatids separate, so each new nucleus receives one copy of each chromosome.

functions of proto oncogenes

The ________ are to help promote cell division by accelerating it directly and indirectly.

DNA synthesis

Explain how ________ can proceed in both directions from a replication origin, even though DNA polymerase can synthesize DNA only in one direction.

sister chromatids

What are the two copies of each chromosome made during the Synthesis (S) phase, and are now ready to be separated and delivered to the new nuclei? Answer with a single words or term.

DNA replication

________ is important in cell division.

DNA synthesis

________ can proceed in both directions from a replication origin, even though DNA polymerase can synthesize DNA in only one direction.