The correct option is: b. mitosis is not regulated in tumor cells. Cancer cells are malignant tumor cells and cancer is a disease of mitosis where the cell divides uncontrollably.
The tumor cells use mitosis to replicate and and cell cycle checkpoints are ignored so the mitosis is unregulated. So option c. tumor cells use meiosis to replicate is incorrect.
Tumor cells contain abnormal number of chromosomes so option d. is incorrect as it contains chromosomes.
Due to aneuploidy of tumor cells it cannot be specifically haploid or diploid so option a is incorrect.
The mitosis is not regulated in the tumor cell that makes it different from a normal cell. The other characteristics are cell shape, nucleus shape, chromatin, and growth rate, etc.that make it different from a normal cell.
Further Explanation:
The difference between normal cells and tumor cells are listed in table 1 attached below.
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Answer Details:
Grade: High School
Subjects: Biology
Topic: Cell growth and development
Keywords:
Tumor, cell, nucleus, chromatin, spheroid, controlled, aerobic, respiration, nucleations, coarse, hypoxic, metastasis.
B. tissues
C. organs
D. organisms
Answer : The correct answer is -
B. tissues.
Tissue can be described as the group of similar cells that are clustered together to perform specific functions.
For example- Nervous tissue is made up of nerve cells (also called neuron) that help in the transmission of electrical signals throughout the body.
Thus,option B) tissues is the right answer.
In order from smallest to largest :
Atom, base subunit, nucleotide, gene, chromosome, nucleus, cell.
A cell is the structural and basic unit of life. The study of cells from their basic structure to the functions of each cell organelle is called cell biology. Robert Hooke was the first biologist who discovered cells.
All organisms are made up of cells. They can consist of one cell (unicellular) or many cells (multicellular). Mycoplasmas are the smallest known cells. Cells are the building blocks of all living things. They give structure to the body and transform nutrients from food into energy.
Cells are complex and their components perform different functions in the body. They come in different shapes and sizes, like the bricks of buildings. Our body is made up of cells of different shapes and sizes.
To learn more about cell, refer;
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