Reproduction Unit - Part A Quiz

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Questions and Answers

What is the correct sequence of events for the cell cycle?

  • Prophase, Metaphase, Anaphase, Telophase, Interphase, Cytokinesis
  • Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis (correct)
  • Cytokinesis, Interphase, Prophase, Metaphase, Anaphase, Telophase
  • Interphase, Prophase, Metaphase, Telophase, Anaphase, Cytokinesis

Which of the following is NOT a form of asexual reproduction discussed in class?

  • Budding
  • Fertilization (correct)
  • Fragmentation
  • Spore formation

What is the main function of cytokinesis?

  • To replicate the DNA
  • To condense the chromosomes
  • To break down the nuclear membrane
  • To divide the cytoplasm and organelles (correct)

What is the correct chromosome combination for a female human?

<p>XX (B)</p> Signup and view all the answers

What is a carcinogen?

<p>A substance that can cause cancer (A)</p> Signup and view all the answers

Which nitrogen base is NOT found in DNA?

<p>Uracil (D)</p> Signup and view all the answers

How many homologous pairs of chromosomes are in every human body cell?

<p>23 (B)</p> Signup and view all the answers

Which of the following is an advantage of sexual reproduction?

<p>It allows for genetic variation in offspring (C)</p> Signup and view all the answers

What is the phase in the cell cycle where chromatids move away from each other?

<p>Anaphase (C)</p> Signup and view all the answers

Which of the following identifies a harmful tumor?

<p>Malignant tumor (A)</p> Signup and view all the answers

Which structures in a cell are used for movement?

<p>Cilia (A)</p> Signup and view all the answers

What is a natural occurrence of clones in nature?

<p>Budding in yeast (C)</p> Signup and view all the answers

What part of the cell acts as the control center?

<p>Nucleus (B)</p> Signup and view all the answers

Which of these is only found in plant cells and serves to protect the cell?

<p>Cell wall (A)</p> Signup and view all the answers

Which organelle is responsible for energy production in the cell?

<p>Mitochondrion (B)</p> Signup and view all the answers

What is the fluid-filled space within a plant cell that contains water, minerals, and proteins?

<p>Vacuole (D)</p> Signup and view all the answers

Flashcards

Asexual reproduction

Offspring are genetically identical to the parent.

Cilia

Hair-like structures that help move cells or their surroundings.

Malignant tumor

A type of tumor that is harmful and can spread.

Natural clones

Organisms that are genetically identical without human intervention.

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Anaphase

Phase in cell cycle when chromatids separate to opposite poles.

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Flagellum

A whip-like tail that aids cell movement.

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Centrioles

Organelles in animal cells that are important for cell division.

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Vacuole

Fluid-filled space in cells that stores water, minerals, and proteins.

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Difference between animal and plant cells

Animal cells lack a cell wall and chloroplasts, while plant cells do.

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Stages of cell division

The main stages are Interphase, Mitosis, and Cytokinesis.

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Forms of asexual reproduction

Includes binary fission, budding, fragmentation, and vegetative propagation.

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Cytokinesis

The final stage of cell division where the cytoplasm divides, forming two daughter cells.

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Chromosome count in human cells

Humans have 46 chromosomes arranged in 23 homologous pairs.

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Role of nitrogen bases in DNA

Four bases (adenine, thymine, cytosine, guanine) carry genetic information in DNA.

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Mutation

A change in the DNA sequence which can lead to changes in traits.

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Study Notes

Reproduction Unit - Part A: Multiple Choice

  • Cell Comparison: Animal cells differ from plant cells in various ways.
  • Event Sequence: Figure 1 shows a sequence of events, identify the correct order.
  • Cell Division Stages: Name and describe the stages (about 5 MC questions).
  • Asexual Reproduction: Daughter cells produced via asexual reproduction are identical to the parent cell.
  • Types of Asexual Reproduction: List the asexual reproductive methods taught in class.
  • Cytokinesis: Define cytokinesis.
  • Human Cell Chromosomes: State the number of chromosomes in a human cell.
  • Genetic Information: Identify the part of the cell containing genetic information.
  • Mutation Definition: Define a mutation.
  • Carcinogen Definition: Define a carcinogen.
  • DNA Nitrogen Bases: Name the four nitrogen bases in DNA.
  • Homologous Pairs: State the number of homologous pairs in a human body cell.
  • Asexual vs. Sexual Reproduction: Compare the advantages and disadvantages of both methods.
  • Chromosome Combinations: Identify the chromosome combination of female and male humans.

Part B: True or False

  • (True or False questions for 10 points)

Part C: Matching

  • Types of Asexual Reproduction: Match types to descriptions.
  • Cellular Communication: Match chemical messengers to their roles.
  • Asexual Reproduction: Match organisms to reproduction types.
  • Cell Structures: Match cell structures with their functions.

Part D: Short Answer

  • Asexual Reproduction Advantages/Disadvantages: Explain one advantage and disadvantage.
  • Allan Legere Trial Significance: Explain the significance of Allan Legere's second trial.
  • Dolly the Sheep Facts: Name three significant facts about Dolly the sheep.
  • Twins vs Clones: Explain the statement "all twins are clones, but not all clones are twins", listing two advantages and disadvantages of cloning.
  • DNA Base Pairs: Fill in the missing base pairs for a given DNA sequence.

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