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Questions and Answers
What is non-Mendelian inheritance?
What is non-Mendelian inheritance?
A complex pattern of inheritance that does not follow the laws of heredity by Gregor Mendel.
What does incomplete dominance describe?
What does incomplete dominance describe?
The formation of a trait that is in between the phenotypes of the parents.
What is codominance?
What is codominance?
A non-Mendelian type of dominance where the alleles of a gene pair in a heterozygote are fully expressed.
Which of the following describes sex-linked traits?
Which of the following describes sex-linked traits?
What are multiple alleles?
What are multiple alleles?
What does monogenic inheritance involve?
What does monogenic inheritance involve?
What are additive alleles?
What are additive alleles?
Define endemic species.
Define endemic species.
What characterizes endangered species?
What characterizes endangered species?
What are extinct species?
What are extinct species?
What does species richness refer to?
What does species richness refer to?
Flashcards
Non-Mendelian inheritance?
Non-Mendelian inheritance?
A complex pattern of inheritance that does not follow Mendel's laws.
Incomplete dominance?
Incomplete dominance?
The formation of a trait that is in between the phenotypes of the parents.
Codominance?
Codominance?
A type of dominance where both alleles of a gene pair in a heterozygote are fully expressed.
Sex-linked traits?
Sex-linked traits?
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Multiple alleles?
Multiple alleles?
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Monogenic inheritance?
Monogenic inheritance?
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Additive alleles?
Additive alleles?
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Endemic species?
Endemic species?
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Endangered species?
Endangered species?
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Extinct species?
Extinct species?
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Species richness?
Species richness?
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Study Notes
Non-Mendelian Inheritance
- Characterized by inheritance patterns that do not adhere to Mendel's principles.
Incomplete Dominance
- Results in offspring displaying a phenotype that is a blend of the parents' traits rather than one trait being dominant over the other.
Codominance
- Both alleles in a heterozygote are expressed fully and simultaneously, leading to a phenotype that showcases features from both alleles.
Sex-Linked Traits
- Genes associated with sex chromosomes can influence traits, with expressions related to gender.
- Sex-influenced traits: Autosomal traits affected by the sex of the individual but not located on sex chromosomes.
- Sex-limited traits: Autosomal traits whose expression is restricted to one sex.
Multiple Alleles
- Involves more than two alleles controlling the expression of a trait.
- Ishihara test plates are employed to assess color vision deficiencies such as color blindness.
Monogenic Inheritance
- Involves a single gene determining a trait.
- Polygenic (Multiple gene) inheritance: Traits are governed by multiple genes, leading to a wider range of phenotypes.
Additive Alleles
- Refers to the cumulative effect of alleles where inheriting more copies results in more pronounced traits.
Biodiversity in the Philippines
- Endemic species: Unique species that are native to a specific geographical region and not found elsewhere.
- Endangered species: Species with low populations at risk of extinction.
- Extinct species: Organisms that no longer exist on Earth.
- Species richness: Measurement of the number of different species present in a given area.
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