Crop Domestication and Loss of Genetic Diversity

Crop Domestication and Loss of Genetic Diversity

Assessment

Flashcard

Biology

12th Grade

Hard

Created by

masakala tzudir

Used 1+ times

FREE Resource

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10 questions

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1.

FLASHCARD QUESTION

Front

What is crop domestication?

Back

Crop domestication is the process by which a plant's native characteristics are altered so that it cannot grow and reproduce without human intervention.

2.

FLASHCARD QUESTION

Front

What is co-evolution in the context of crop domestication?

Back

Co-evolution refers to the symbiotic relationship between plants and humans, where both evolve to suit one another's needs.

3.

FLASHCARD QUESTION

Front

What are the three stages of crop domestication?

Back

1. Pre-adapted wild plants colonize open ground around human habitation. 2. Seeds are regularly harvested and protected from herbivores. 3. Humans learn the timing of sowing and plant husbandry.

4.

FLASHCARD QUESTION

Front

What are some reductions or losses due to domestication?

Back

Loss of seed viability, protective coverings, shattering, seed dormancy, sturdiness, photoperiodic response, number of seeds, and resistance to abiotic stresses.

5.

FLASHCARD QUESTION

Front

What are some improvements or increases due to domestication?

Back

Increased adaptability, size of fruits, size of seeds, palatability, chemical composition, yielding ability, and uniform flowering.

6.

FLASHCARD QUESTION

Front

What is the technological drawback of improved crop varieties?

Back

Improved varieties eliminate the genetic resources upon which they are based.

7.

FLASHCARD QUESTION

Front

What has happened to genetic diversity over the past 10,000 years?

Back

Genetic diversity has been replaced with a relatively small number of varieties bred for high input agriculture.

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