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When it comes to hair texture, human hair can be very strait, very curly, or nearly anywhere in between (slightly wavy, very wavy etc.) Scientists have discovered several different gene pairs at several different chromosomal locations that influence hair texture in humans, therefore human hair texture can be described as a _______ trait. In addition to the many gene pairs that can influence a person's hair texture, the environment can influence a person's hair texture as well. For example a person whose hair is slightly wavy on a dry day, might be more curly or frizzy hair on a humid day. Since hair texture is influenced by the environment as well as genes it is also considered a ___________ trait.

Answer :

LUISVASCHETTOGO

Answer:

polygenic; multifactorial

Explanation:

A polygenic trait can be defined as any phenotypic feature of an organism that is controlled by the action of several polymorphic genes which interact with the environment to produce a given phenotype (i.e., they are multifactorial traits). The polygenic traits are controlled by many genes localized in different regions of the genome (i.e., loci) and exhibit a continuous range of variation, where each genomic region associated with the variation of the trait is called Quantitative Trait Locus (QTL). Some examples of polygenic/quantitative traits include, among others, height, hair color, weight, blood pressure, etc.

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