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Biology SI Prefixes and Characteristics of Life

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Biology SI Prefixes and Characteristics of Life

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Questions and Answers

What is the main difference between prokaryotic and eukaryotic cells?

Prokaryotic cells have membrane-bound organelles, while eukaryotic cells do not.

Eukaryotic cells have circular DNA, while prokaryotic cells have linear DNA.

Eukaryotic cells have a cell wall, while prokaryotic cells do not.

Prokaryotic cells have a nucleus, while eukaryotic cells do not. (correct)

Which is a characteristic feature of plant cells but not human cells?

Ability to perform photosynthesis

Presence of mitochondria

Cell wall made of cellulose (correct)

Presence of a nucleus

What is the main function of the plasma membrane in eukaryotic cells?

DNA replication

Cellular communication (correct)

Waste elimination

Energy production

What is the term for the phenomenon where two alleles blend together to create an intermediate phenotype?

Incomplete dominance Signup and view all the answers

Which term describes the situation where both alleles of a gene are fully expressed in the phenotype of a heterozygous individual?

Co-dominance Signup and view all the answers

What is the term for genes that need to work together at different loci to produce a particular phenotype?

Complementary genes Signup and view all the answers

Which concept involves genes having more than two allelic forms within a population?

Multiple alleles Signup and view all the answers

What are the three main cytoskeletal elements found in eukaryotic cells?

Microtubule, Intermediate filament, Microfilament Signup and view all the answers

What are the various stages of cell division that constitute mitosis?

Interphase, Prophase, Metaphase, Anaphase, Telophase Signup and view all the answers

What is the physiological relevance of active and passive transport in cellular homeostasis?

Active transport enables the movement of substances against their concentration gradient Signup and view all the answers