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Definition of technical terms.
Definition 1: A unit trait that correspondingly exhibits different characteristics in different individuals. Applied Disciplines:
Fisheries Science (first-level discipline); Aquatic Biological Breeding (Secondary Discipline) Definition 2: A trait that is determined by a pair of alleles and has significant differences. For example, the shape of a pea is round or shrivelled.
Applied Disciplines: Genetics (First-level Discipline); Classical Genetics (Secondary Discipline).
This content is approved and published by the National Committee for the Examination and Approval of Scientific and Technological Terminology Different types of manifestations of the same trait of the same species are called relative traits.
For example, peas have white and red flower colors, sheep coat colors have white and black hairs, wheat is rust resistant and rust susceptible, and barley is drought tolerant and non-drought tolerant.
Contrasting character: Different individuals often have different manifestations in unit traits, such as red and white pea flower colors, round and wrinkled seed shapes, wheat rust resistance and rust susceptibility, barley drought tolerance and non-drought tolerance, different human eye colors and different skin tones, etc. In genetics, the relative difference in the same unit trait is called a relative trait.
When Mendel studied the inheritance of unit traits, he used the relative traits with obvious differences to carry out crossbreeding experiments, and only in this way could the offspring be compared and analyzed to find out the differences and discover the laws of inheritance.
Definitions of "traits" and "relative traits" in the second edition of the Glossary of Genetics:
Character: In genetics, the morphological structure, physiological characteristics and behavior patterns of organisms are collectively referred to as traits. Unit character:
When Mendel studied the inheritance of traits in plants such as peas, he divided the traits exhibited by plants into various units as the object of study, and the traits that were distinguished in this way were called unit traits. There are 7 different unit traits of pea, such as flower color, seed shape, cotyledon color, pod shape, pod (immature) color, inflorescence bearing part, and plant height traits.
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Relative traits: Relative differences in traits in the same unit.
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Different manifestations of the same trait in the same organism are called relative traits.
The traits of organisms are generally controlled by genes on the DNA. Chromosomes are present in pairs within the cells of living organisms, therefore, genes are also present in pairs, and relative traits are divided into recessive traits and dominant shapes.
The genes that control dominant traits are called dominant genes and are usually represented by capital letters; The genes that control recessive traits are called recessive genes and are usually indicated by lowercase letters.
Examples:
The single eyelid and double eyelid of the eye are different manifestations of the same trait and are relative traits, so relative traits refer to different manifestations of the same organism and the same trait. If there are no earlobes, single and double eyelids, etc.
For example, peas have tall stems and short stems; There are those with round seeds, and there are those with wrinkled seeds. In this way, the different types of manifestations of the same trait in an organism are called relative traits. Let's take a look at the 7 pairs of relative traits that Mendel observed.
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Traits: The morpho-structural characteristics, physiological characteristics, and behavioral patterns exhibited by organisms are collectively referred to as traits.
For example, human hair has straight and curly hair, iris color is blue and black, human single and double eyelids, rabbit hair is white and black, etc. Wrinkles and rounds of peas.
Relative traits: Different manifestations of the same trait between individuals of the same species are called relative traits.
For example, seeds can be round and wrinkled, wheat is resistant to rust and is susceptible to rust, barley is drought tolerant and non-drought tolerant, and human eyes are different colors and skin tones.
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Traits are the sum of all the traits of an organism. There are many, many traits in any living organism. Some are morphological and structural characteristics (such as the color and shape of pea seeds), some are physiological characteristics (such as human ABO blood type, plant disease resistance, cold tolerance), and some are behavioral patterns (such as dog aggression, Yuga obedience), and so on.
Different manifestations of the same trait in the same organism are called relative traits. It is divided into dominant traits and recessive traits, dominant genes control dominant traits, and recessive genes control recessive traits, such as human single eyelids are recessive traits and double eyelids are dominant traits. Relative traits refer to the different manifestations of the same trait of the same organism Some traits of an organism are controlled by a pair of genes, and the paired genes are often divided into dominant, dominant and recessive, and the tall stem and short stem of the pea god blind sect are a pair of relative traits, and the relative traits are divided into dominant and recessive shapes.
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Relative trait refers to the fact that the same species of organisms often have a variety of different manifestations in the unit trait, and the relative difference of the same unit trait in genetics belongs to the disciplines of biology, genetics, and genetics.
Different individuals often have different manifestations in unit traits, for example, pea flower color is red and white, seed shape is round and wrinkled, wheat rust resistance and rust susceptibility, barley drought tolerance and non-drought tolerance, human eyes with different colors and skin tones, etc. In genetics, the relative difference in the same unit trait is called a relative trait.
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