Biology- Cancer

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elophase and cytokinesis is a step of mitosis. What key event happens during. telophase and cytokinesis? A) Nuclear envelopes form and a cleavage furrow forms B) Sister chromatids are pulled apart C) Chromosomes condense D) Sister chromatids align in the spindle equator

A) Nuclear envelopes form and cleavage furrow forms

The appearance of cancerous cells differs from normal cells. If you were to view cancerous cells under the microscope, you would notice enlarged________. A) nuclei B) ribosomes C) plasma membranes D) mitochondria E) vacuoles

A) nuclei

Prophase is a step of mitosis. What key event happens during prophase? A) Sister chromatids align on the spindle equator B) Chromosomes condense C) Sister chromatids are pulled apart D) Nuclear envelopes form and a cleavage furrow forms

B) Chromosomes condense

I-131 is a radioactive form of iodine that is used to aid in systemic radiation of thyroid cancer. Why is I-131 used in this treatment? A) Radioactive iodine is harmless to the patient B) Iodine is used by the thyroid; therefore, the radioactive form would also travel to that area C) Radioactive iodine will interfere with cancer cells in the thyroid and throughout the body D) Iodine is required for all cancerous cells to continue to divide; therefore, it would travel to those cells E) Iodine is required for DNS replication; therefore, it would be attracted to DNA of cancerous cells

B) Iodine is used by the thyroid; therefore, the radioactive form would also travel to that area

Which of the following scanning tools is used to look for abnormalities in the breast that could be associated with cancer? A) MRI B) Screening mammogram C) PET Scan D) CT Scan E) Diagnostic mammogram

B) Screening mammogram

Immunotherapy is a new method of treatment that A) involves genetically-engineered white blood cells that activate the action of cytotoxic T cells B) helps the immune system identify cancerous cells and target them for destruction C) All of the answer choices are correct D) uses chemicals such as interferons and interleukins to stimulate white blood cell activity E) uses monoclonal antibodies to target specific antigens on the surface of cancer cells

B) helps the immune system identify cancerous cells and target them for destruction

Anaphase is a step if mitosis. What key event happens during anaphase? A) Chromosomes condense B) Sister chromatids align on the spindle equator C) Nuclear envelopes form and a cleavage furrow forms D) Sister chromatids are pulled apart

D) Sister chromatids are pulled apart

Antimetabolites work by A) placing the cell in GO phase B) interfering with the cells ability to unwind DNA during DNA replication C) breaking the DNA and introducing mutations D) mimicking nucleotides, which results in an incorrectly developed DNA molecule E) interfering with the spindle fibers that separate the sister chromatids

D) mimicking nucleotides, which results in an incorrectly developed DNA molecule

Which of the following blood cells would be measured to evaluate a patient for cancer? A) White blood cells B) Red blood cells C) platelets D) Osteocytes E) All the answer choices are correct

E)


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