BIO 182 Chapter Notes - Chapter 11: Sister Chromatids, Microtubule, Synapsis
Document Summary
Get access
Related textbook solutions
Related Documents
Related Questions
What is the difference between chromatin and chromosomes?
Question options:
chromatin is one of two identical strands of DNA. | |
chromosomes are chromatin that has been tightly packed and coiled. | |
chromosomes are composed of nucleosomes and chromatin is composed of sister chromatids. | |
chromosomes are important in mitosis and chromatin is essential to meiosis. |
Bacterial cells only reproduce asexually and cannot exchange genetic material.
Question options:
True, because they undergo binary fission. | |
False, because they transfer genetic material with other bacterial cells. | |
True, because they have a cell wall that prevents sharing of genetic material. |
After a visit to a specialist, Dan was diagnosed with liver cancer. Six months later additional tumors were found in his stomach and small intestine. This is an example of
Question options:
malignant tumors. | |
benign tumors. | |
Both malignant tumors and metastasis are correct. |
Which of the following does NOT occur during mitosis?
Question options:
DNA is replicated. | |
Replicated chromosomes divide. | |
Cells line up along the equator of the cell. |
Which of the following is INCORRECTLY matched?
Question options:
prophase -- mitotic spindle forms | |
metaphase -- chromosomes line up along the equator | |
telophase -- cytoplasm divides |
Why is hair loss a common side effect of cancer treatments?
Question options:
Hair cells are at the surface of the body so die easily. | |||||||
Hair cells divide rapidly and so are targeted by the cancer drugs. | |||||||
Cancer drugs often target and kill random cells within the body. From "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer," how are endostatins used to treat cancerous cells? Question options:
|
|
Every year, the viral strains included in vaccinations for the flu are slightly different, based on the prevalence of the strains present the previous year. Which of the following statements is TRUE regarding the vaccinations and the treatment of viral infections like the flu?
A. | When someone who is vaccinated encounters the virus they were vaccinated for, antigens are produced triggering destruction of the virus. | |
B. | Antibodies are built up in response to viral antigens, making those with vaccines more susceptible to viral infection. | |
C. | Viruses mutate quickly due to overuse of antibiotics. | |
D. | Vaccinations involve introducing an antigen of a virus into the immune system, which stimulates the production of antibodies. |
Recall that HIV is a retrovirus. Based on that, which of the following would NOT be an effective drug target for treatment of HIV?
A. | Translation inhibitors | |
B. | Integrase inhibitors | |
C. | Reverse transcriptase inhibitors |
The type of horizontal gene transfer that specifically requires a virus to transfer DNA from donor to recipient is called:
A. | transformation. | |
B. | conjugation. | |
C. | transduction. | |
D. | binary fission. |
Binary fission differs from mitosis in that
A. | binary fission occurs in prokaryotes, and mitosis happens in eukaryotes. | |
B. | binary fission does not have a step to duplicate the genetic information, and mitosis does. | |
C. | binary fission creates daughter cells that are genetically identical to the parent cell, while mitosis introduces genetic variation. | |
D. | binary fission does not have a step to separate the parent cell into two daughter cells, and mitosis does. |
Bacteria contain ______ in their cell walls, while Archaea contain _____ in their cell walls.
A. | chitin; peptidoglycan | |
B. | peptidoglycan; pseudopeptidoglycan | |
C. | pseudopeptidoglycan; peptidoglycan | |
D. | peptidoglycan; chitin | |
E. | cellulose; chitin |