30 Questions
What is the site where cell division begins in eukaryotic cells?
Nucleus
What is the primary function of cellular differentiation?
Specialization of cells for specific functions
What is the purpose of chromatin undergoing compaction through coiling during cell division preparation?
To prepare genetic material for cell division
What would happen if a cell were to divide without preparation?
The cell would replicate incorrectly
What type of stem cell can turn into any cell type?
Embryonic stem cell
What is the function of the kinetochore in cell division?
To serve as an attachment point for spindle fibers during chromosome separation
What is the term for cells that never divide again?
Permanently differentiated cells
What is the role of centrioles in cell division?
To become visible and take part in cell division
What is the function of the nuclear membrane in cell division?
To separate the chromosome from the cell's cytoplasm and other organelles
What is the result of cytokinesis?
The division of the cytoplasm into two daughter cells
What is the number of chromosomes found in human cells?
46
What is the role of spindle fibers in cell division?
To separate the chromosomes during cell division
What is the primary difference between cytokinesis in animal cells and cytokinesis in plant cells?
The location of cleavage furrow formation
How many pairs of chromosomes are present in a human diploid cell?
22 pairs of autosomes and 1 pair of sex chromosomes
What is the purpose of a karyotype test?
To check for the presence of 46 chromosomes
What is the number of chromosomes present in a human haploid cell?
23 chromosomes
What is the term for the process of preparing a karyogram?
Karyotyping
What is the type of cell division used by multicellular organisms to form reproductive cells?
Meiosis
What is the primary function of the G1 phase of the cell cycle?
Cell growth and protein synthesis
What is the result of DNA replication during the S phase of the cell cycle?
Two identical sister chromatids are produced
What percentage of the cell cycle is devoted to interphase?
90%
What is the purpose of the G2 phase of the cell cycle?
To prepare for cell division by assembling necessary proteins
What is the stage of the cell cycle where cell division occurs?
Mitosis
What is the longest phase of the interphase?
G1 phase
What is the result of meiosis in terms of the number of daughter cells produced?
Four daughter cells
What is the term for the process of gamete or sex cell reproduction among male animals, including humans?
Spermatogenesis
What is the purpose of crossing-over in meiosis?
To increase genetic variability
What is the stage of meiosis where homologous chromosomes align at the metaphase plate?
Metaphase I
What is the characteristic of daughter cells produced through meiosis?
They are non-identical and haploid
What is the stage of meiosis where nuclear membrane forms around each set of chromosomes?
Telophase II
Test your knowledge of cell biology, including cell division, fertilization, and cellular differentiation. Learn about the different types of cells, including stem cells and differentiated cells. Understand how cells specialize for specific functions.
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