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Questions and Answers
If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?
If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?
Trait B
How does the creation of variations in a species promote survival?
How does the creation of variations in a species promote survival?
It allows for different characteristics that may provide advantages in varying environments.
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Study Notes
Heredity and Evolution
- Reproduction leads to new individuals with similar, but subtly different traits.
- Asexual Reproduction produces minimal variations between offspring.
- Sexual reproduction maximizes successful variations
- Observable variations in a species are more pronounced in sexually reproducing organisms.
- Variations occur due to inheritance and the creation of new differences.
- Environmental factors select for advantageous variations, influencing survival.
- Variations in a species do not have an equal chance of survival.
- Individuals with advantageous variations are more likely to survive in a given environment.
- Heredity determines the inheritance of traits and characteristics.
Accumulation of Variation during Reproduction
- New generations inherit traits and variations from the previous generation.
- Offspring in the second generation inherit variations from their parents and develop new variations.
- Asexual reproduction involves minimal variation due to small inaccuracies in DNA copying.
- Sexual reproduction leads to greater diversity, as will be explained later.
- Variations within a species influence their ability to survive in their environment.
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