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What is is a polygenetic trait?
A polygenetic trait is a characteristic that is influenced by multiple genes, each contributing a small amount to the overall phenotype. These traits often show a wide range of variation in a population and are not simply controlled by a single gene. Examples include height, skin color, and intelligence.
How many alleles does a zygote have for each trait?
No - some traits are polygenetic (such as for skin color, eye color, hair color, etc.) and will have multiple alleles.
What is polygeny?
Inheritance in which more than one gene pair affects the appearance of a particular trait. Polygenetic inheritance refers to the non-Mendelian form of inheritance in which a particular trait is produced by the interaction of many genes.
What is an example of a sex-linked trait?
the color of your eyes. your skin color :D - starlight1765
Why Several genes control human eye color. Because of this eye color shows a continuous variation from very dark brown to green to blue. What is this an example of?
Eye color is not an example of polygenetic traits. Skin color is. Eye color is rather simple as far as genetics go (in humans). Brown (B) is dominate and blue (b) is recessive. A person with blue eyes has to have to have both genes for the color blue (bb). A person with brown eye color can has both genes for brown (BB) or one for brown and one for blue (Bb). The blue is not expressed in this case with Bb. Some people have hazel eyes but this is a variation of the blue color.
What are polygenetic traits?
Polygenetic traits are traits that are influenced by multiple genes working together. These traits often show a continuous range of variation in a population rather than distinct categories. Examples include height, skin color, and intelligence.
An example of a trait influenced by the environment?
Sun exposure affecting skin color is an example of a trait influenced by the environment. People living in sunnier regions tend to have darker skin compared to those in less sunny areas due to the production of melanin in response to UV radiation.
What is an example of polygenetic inheritance?
Coat color and pattern is a polygenic trait, meaning it is controlled by more than one gene or gene complex. A dog with the gene for black color expression may also have the gene for suppression of black and so have a red or yellow coat. Or a dog with the brindle gene may have one or more of the genes for large areas of white and so have little or no brindle coloring visible. A dog with the dominant black gene may have genes for color fading and appear gray or merle.
Skin color in humans is a simple trait and is determined by only one pair of genes or alleles true or false?
False. Skin color in humans is a complex trait that is influenced by multiple genes, not just one pair of genes or alleles. Many factors, including genetic, environmental, and evolutionary influences, contribute to the wide range of skin colors observed in human populations.
What is an example for polygenic traits in humans?
Haha wow biology test questions on answers.com. MATURE! Look at the information in your packets. My friend looked up a question and this came up and it is the exact same question in the packet. Nice.
What trait is a skin color?
Heredic.
Does a single pair of alleles always determine an individual trait?
No, often many other alleles will also determine the same trait. For example, many alleles put together will determine a person's skin color.
