Embryonic Development Processes

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What is the critical point where internal and external signals can regulate the cell cycle?

G1 phase (correct)

G2 phase

S phase

G0 phase

What is the term used to describe the controlled self-destruction of cells?

Mitosis

Meiosis

Apoptosis (correct)

Cytokinesis

Which phase represents a resting state where cells have temporarily stopped dividing?

S phase

G2 phase

G0 phase (correct)

G1 phase

What term is used to describe the uncontrolled division of cells that leads to tumor formation?

Neoplasia Signup and view all the answers

What is the term used to describe cancer cells that break away from the primary tumor and spread to other parts of the body?

Metastatic cells Signup and view all the answers

Which of the following is an environmental factor that can contribute to the development of cancer?

Radiation exposure Signup and view all the answers

What is the term for the fertilized egg that goes through cell division repeatedly?

Zygote Signup and view all the answers

Which process creates specialized cells with specific structures and functions from undifferentiated cells?

Differentiation Signup and view all the answers

What are embryonic stem cells capable of becoming?

Any type of specialized cell in the body Signup and view all the answers

What is the term for the repeated pattern of growth, DNA duplication, and cell division in eukaryotic cells?

Cell cycle Signup and view all the answers

During which phase of the cell cycle does DNA replication occur?

S phase Signup and view all the answers

What is the term for a section of DNA that contains the instructions for making a protein?

Gene Signup and view all the answers

How many pairs of homologous chromosomes are present in normal human body cells?

23 Signup and view all the answers

During which phase of the cell cycle do chromosomes condense and become visible as distinct structures?

M phase Signup and view all the answers

What is the term for the process that divides the cytoplasm of a cell into two separate cells during the end of the cell cycle?

Cytokinesis Signup and view all the answers

Why do cells need to maintain a relatively small size and a high surface area to volume ratio?

To enable easier transport of substances in and out of the cell Signup and view all the answers