Introduction to Fisheries Genetics Module 1 Quiz
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Questions and Answers

What is the primary purpose of using genetic markers in fisheries science?

  • To determine the water quality in fish habitats
  • To select fish for aquaculture operations
  • To identify the origin of individual fish (correct)
  • To study the behavior of fish populations

How does genetics contribute to the conservation of endangered fish species?

  • By determining the average size of fish populations
  • By regulating the temperature of fish habitats
  • By implementing strategies like captive breeding and genetic rescue (correct)
  • By studying the migration patterns of fish populations

In aquaculture, what is the primary purpose of using genetics?

  • To regulate the oxygen levels in fish farming ponds
  • To monitor the pH levels in aquaculture facilities
  • To study the social structures of fish populations
  • To selectively breed fish with desirable traits (correct)

What is the overarching purpose of fisheries genetics?

<p>To study fish populations and improve fisheries management (A)</p> Signup and view all the answers

How do genetic markers contribute to setting appropriate catch limits?

<p>They help identify the origin of individual fish (C)</p> Signup and view all the answers

What role does genetics play in preventing the overfishing of specific fish populations?

<p>It helps in identifying which stocks are being exploited (A)</p> Signup and view all the answers

What is the purpose of aquaculture genetics?

<p>To deal with issues of genetic variability and fitness in aquaculture (B)</p> Signup and view all the answers

Why is genetic diversity within fish populations essential?

<p>To withstand environmental changes and resist disease outbreaks (D)</p> Signup and view all the answers

What does genetic techniques help reveal about fish populations?

<p>The structure of fish populations (C)</p> Signup and view all the answers

Who is considered the father of modern genetics?

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

What did Gregor Mendel apply for experiments using pea plants?

<p>Quantitative data analysis (C)</p> Signup and view all the answers

What did Nehemiah Grew report about plants' reproduction?

<p>They reproduce sexually using pollen from male sex cells (D)</p> Signup and view all the answers

What was the theory proposed by Aristotle?

<p>&quot;Gemmules&quot; were passed on through semen (pangenesis) (C)</p> Signup and view all the answers

What did Gregor Mendel's pea plant experiments demonstrate?

<p>&quot;Unit factors&quot; control hereditary traits and separate during gamete formation (C)</p> Signup and view all the answers

What did Gregor Mendel's experiments disprove?

<p>Hereditary traits are drawn from various parts of the male body and passed on through semen (A)</p> Signup and view all the answers

What did Aristotle's theory propose?

<p>Gemmules were passed on through semen (pangenesis) (C)</p> Signup and view all the answers

Flashcards

Genetic markers in fisheries

Used to identify the origin of individual fish.

Genetics in conservation

Contributes by enabling captive breeding and genetic rescue of endangered fish species.

Aquaculture genetics

Focuses on selectively breeding fish with desirable traits for optimal growth.

Fisheries genetics purpose

Studies fish populations to improve fisheries management practices.

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Catch limits and genetics

Genetic markers aid in determining the origin of fish for setting catch limits.

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Preventing overfishing

Genetics helps identify exploited stocks to protect fish populations.

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Genetic diversity importance

Essential for fish populations to withstand environmental changes and resist diseases.

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Population structure in genetics

Genetic techniques reveal how fish populations are structured.

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Father of modern genetics

Gregor Mendel is recognized as the founder of modern genetics.

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Mendel's pea plant experiments

Utilized quantitative data analysis to study heredity.

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Nehemiah Grew's report

Described that plants reproduce sexually using pollen from male sex cells.

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Aristotle's gemmules theory

Proposed that 'gemmules' are passed on through semen (pangenesis).

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Mendel's unit factors

Demonstrated that hereditary traits are controlled by discrete factors that separate during gamete formation.

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Mendel's disproval

Debunked the idea that hereditary traits come from all parts of the male body.

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Aristotle's theory significance

Proposed idea of pangenesis with gemmules as hereditary factors.

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Mendel vs Aristotle

Mendel's discoveries refuted Aristotle's gemmules theory about heredity.

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