15 Questions
During which phase of the cell cycle does DNA replication occur?
S phase
What is the result of cell division by mitosis?
Genetically identical cells
Which stage of mitosis involves the condensation and attachment of chromosomes to spindle fibers?
Prophase
What is the purpose of cytokinesis in the cell cycle?
Dividing the cytoplasm and cell membrane
Which stage is specific to plant cells in mitosis?
Preprophase
In a haplontic life cycle, what is the ploidy of the multicellular stage?
Haploid
What type of life cycle involves multicellular diploid stages and the formation of haploid gametes?
Diplontic life cycle
What term is used for the life cycle in plants and many algae that involves two multicellular stages?
Alternation of generations
What process must occur to return from a diploid stage to a haploid stage in life cycles involving sexual reproduction?
Meiosis
What is the term used for the process involving growth, asexual reproduction, or sexual reproduction during transitions of form in a biological life cycle?
Ontogeny
Who first used the term 'molecular biology' in 1945?
William Astbury
Which group of scientists created the double helix model of DNA in 1953?
Francis Crick, James Watson, Rosalind Franklin
What is the primary focus of molecular biology?
Uncovering the molecular basis of biological activity
Which field covers techniques used to learn about molecular processes for targeting new drugs and diagnosing diseases?
Molecular medicine
What did the discovery of the double helix model of DNA lead to?
Understanding of DNA material in other microorganisms, plants, and animals
Test your knowledge about the process of mitosis and cell division, where replicated chromosomes are separated into two new nuclei. This quiz covers the stages of mitosis, including the S phase of interphase, telophase, and cytokinesis.
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