BIOL 1090 Chapter Notes - Chapter 2: Sister Chromatids, Synaptonemal Complex, Synapsis
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5- Somatic ("body") cells are _______________ (2n). This means there are two copies of each chromosome.
6- During the _______ phase(s) cells perform their everyday functions.
S
M
Q
G
7- When chromosomes are duplicated the two strands are called _______________________________ and they are linked together at a point called the ____________________.
sister strands; kinetochore
sister chromatids; centromere
dual chromatids; centromere
genes; chromatid
8- New somatic âbodyâ cells are formed by this process:
meiosis
binary fission
replication
mitosis
9- The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
10- Cells replicate their DNA during ________________ phase.
S
Q
G
M
1- Most of a cell's life is spend in this phase of the cell cycle:
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2- The cell cycle is a highly regulated process.
True
False
3- Cells replicate their DNA during ________________ phase.
G
S
Q
M
4- In animal cells, ________________________ is the indentation of the cell's surface that marks cytokinesis, the final splitting of the membrane, in the process of cell division.
cleavage furrow
binary fission
cell plate
sister chromatids
5- Somatic ("body") cells are _______________ (2n). This means there are two copies of each chromosome.
6- During the _______ phase(s) cells perform their everyday functions.
S
M
Q
G
7- When chromosomes are duplicated the two strands are called _______________________________ and they are linked together at a point called the ____________________.
sister strands; kinetochore
sister chromatids; centromere
dual chromatids; centromere
genes; chromatid
8- New somatic âbodyâ cells are formed by this process:
meiosis
binary fission
replication
mitosis
9- The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
10- Cells replicate their DNA during ________________ phase.
S
Q
G
M
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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