Exam 8: The Cellular Basis of Reproduction and Inheritance

The process by which the cytoplasm of a eukaryotic cell divides to produce two cells is called

A benign tumor differs from a malignant tumor in that a benign tumor

After reading the paragraphs below, answer the questions that follow. A technique called flow cytometry is used by scientists and researchers to count or sort cells based on specific properties. By labeling cellular DNA with a fluorescent dye, flow cytometry can sort cells based on the amount of DNA present, thereby making it possible to distinguish between cells that are in different stages of the cell cycle. Flow cytometry is especially useful to the medical community because it can help with the diagnosis of certain types of cancers. Below is a typical set of data that you might obtain when running a flow cytometry experiment using a sample of healthy skin cells. Use this figure to help you answer the following questions. -If you used flow cytometry to sort a sample of cancerous cells that have been treated with a drug to prevent them from replicating their DNA, what peaks would you expect to see on the resulting flow cytometry data set?

Which of the following statements regarding mitosis and meiosis is false?

Which of the following is a feature of plant cell division that distinguishes it from animal cell division?

At the start of mitotic anaphase,

If these four cells resulted from cell division of a single cell with diploid chromosome number 2n = 4, what best describes what just occurred?

When observing a chicken skin cell in G₂ under a microscope, you count 156 total chromatids. How many chromosomes does a male chicken have in its sperm cells?

The genetic material is duplicated during

Eukaryotic chromosomes differ from prokaryotic chromosomes in that they

You are asked to culture an unidentified sample of animal tissue. You notice that the cells seem to fail to exhibit density-dependent inhibition. The source of this tissue sample is most likely

Jacobsen syndrome, which can cause heart defects, intellectual deficiencies, and bleeding disorders, is caused by a deletion of the terminal end of chromosome 11. What method could you use to determine whether an individual has Jacobsen syndrome?

During which stage of meiosis do synapsis and crossing over occur?

When animal cells are grown in a petri dish, they typically stop dividing once they have formed a single, unbroken layer on the bottom of the dish. This arrest of division is an example of

Prior to mitosis, each chromosome of a eukaryotic cell consists of a pair of identical structures called

During which phase of mitosis does the nuclear envelope re-form?

Below are three statements. Classify them as examples of independent orientation, crossing over, or random fertilization. I: The formation of a zygote from an egg and a sperm is an unpredictable event. II: Random combinations of paternal and maternal chromosomes end up in gametes. III: An allele on the paternal chromosome 18 ends up on the maternal chromosome 18.

Strictly speaking, the phrase "like begets like" refers to