Unit 4 - Lessons 1-3 (Cell Cycle, Mitosis, Regulation) PRACTICE

Front

What is metastasis?

Back

Metastasis is the process by which cancer cells break free from a malignant tumor and spread to other parts of the body through blood and lymph vessels.

Front

What is the role of the kinetochore in cell division?

Back

The kinetochore is a protein structure on the centromere of a chromosome where spindle microtubules attach during cell division.

Front

What phase of mitosis is characterized by the condensation of chromatin into visible chromosomes?

Back

Prophase is the phase of mitosis where chromatin condenses into visible chromosomes.

Front

How many chromosomes do normal human somatic cells have?

Back

Normal human somatic cells have 46 chromosomes.

Front

What is the chromosome number in haploid gametes?

Back

Haploid gametes have 23 chromosomes.

Front

What is the function of the p53 gene in relation to cancer?

Back

The wild-type p53 gene codes for a protein that facilitates apoptosis in cancer cells with high levels of DNA damage.

Front

What is apoptosis?

Back

Apoptosis is the process of programmed cell death that occurs in multicellular organisms.

Front

What happens during metaphase of mitosis?

Back

During metaphase, chromosomes align at the cell's equatorial plane, and spindle fibers attach to their kinetochores.

Front

What is the significance of the centrosome in cell division?

Back

The centrosome is the main organizing center for microtubules and plays a crucial role in the formation of the mitotic spindle.

Front

What occurs during anaphase of mitosis?

Back

During anaphase, sister chromatids are pulled apart and move toward opposite poles of the cell.