BIOL 1201 : Biology Exam 3 Notes
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Question 1 (2 points)
In which phase of cell division is marked by the dissolution of the nuclear membrane, the condensation of chromosomes, and the formation of the mitotic spindle?
Question 1 options:
prophase | |
metaphase | |
telophase | |
anaphase |
Question 2 (2 points)
The physical separation of cells during cell division is called:
Question 2 options:
Cytokinesis | |
Telophase | |
Interphase | |
Chromosome | |
Cell plate |
Question 3 (2 points)
Meiosis is necessary for sexual reproduction; the gametes formed during this process before fertilization are _______________.
Question 3 options:
Haploid | |
Diploid | |
Zygote | |
Homologous | |
Tetrads |
Question 4 (2 points)
Mitosis is the process by which a ___________ cell separates the chromosomes in its nucleus into two identical sets of nuclei.
Question 4 options:
eukaryotic | |
prokaryotic | |
bacterial | |
all of these are correct |
Question 5 (2 points)
Which of the following statements about crossing over is INCORRECT?
Question 5 options:
It occurs between homologous chromosomes | |
It allows for two parents to produce many different types of offspring | |
It contributes to genetic diversity in a population | |
It occurs during prophase I of mitosis |
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:
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