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If i'm understanding your question correctly you're wondering what the purpose for Mendel's pure line studies. AABB, AAbb, aaBB, aabb are all pure line that Mendel worked with.
Remember this is a time where genetics has not yet been founded officially. When Mendel tended the gardens he noticed some rose plants would be red, some white. He also noticed that in pea plants some pea seeds would be round and yellow, round and green, yellow and wrinkled, and green and wrinkled.
Mendel wanted to know what was causing these events occur so he used plants that were always being red, always being white (AA(red) x aa(white)) and these were pure lines. To make sense of all this he made 4 proposals.
He made 4 proposals: Key:(Alleles(UNITS) genes(FACTORS)
1. Unit Factors come in pairs: Notice how unit and factors are together, this is because he is referring them together.
Unit factors(genes and alleles) come in pairs: example AABB: AA(red)xBB(tall)
there are always 2 alleles for each gene: one allele for each parent
2. Dominance/recessiveness:
When the units for a particular factor, or trait, are different, one unit is dominant over the other. Example: (Aa) A is dominant over a. AA or aa express no dominance over the other that is why they must be different.
3. Segregation: This is where Punnett Square was developed from. This is also where genotype and phenotype ratios started.
The unit factors segregate randomly during gamete formation so each gamete has equal likelihood of receiving either unit of a given factor. Meaning if you cross two pure lines together all your progeny will be the same. example AABB x aabb will create one progeny genotype: AaBb
4. Independent Assortment: This one has exceptions that was later discovered like Epistasis, lethal alleles, codominance, incomplete dominance etc.
The units of different factors segregate into the gametes independently of one another. If you were to draw a Punnett Square and cross together this is based on assumption that all segregate independently.
What else can I help you with?
What term did Mendel used to signify his true breeding first-generation?
parental generation
Gregor Mendel's studies?
Gregor Mendel, an Austrian monk, is known as the father of modern genetics for his work on pea plants in the 19th century. By selectively breeding pea plants and studying their inheritance patterns, Mendel discovered the principles of heredity that laid the foundation for our understanding of genetics today. His work on dominant and recessive traits, as well as his development of Punnett squares, revolutionized the field of genetics.
What did Mendel call the first two individuals that mate in a genetic cross?
Mendel called the first two individuals that mate in a genetic cross the P generation.The P generation
In which generation were recessive traits hidden in all the plants in Mendels experiments?
f2 generation
What was Mendel's results to his first experiment?
In Mendel's first experiment with pea plants, he crossed true-breeding plants with contrasting traits (e.g., tall and short). He found that the first generation (F1) offspring all displayed one of the traits, while the second generation (F2) showed a 3:1 ratio of the dominant to recessive trait. This led him to formulate his principles of inheritance, now known as Mendelian genetics.
What was the result of the first gemeration of pea plants that Mendel bred?
The first generation of of pea plants that Mendel bred were tall.
What was the result of the first generation of pea plants that mendel bred?
P generation.
What term did MEndel used to signify his true breeding first gneration?
parental generationparental generation
What did mendel call the first two individual that make in a genetic cross?
Mendel referred to the first two individuals in a genetic cross as the "P generation," which stands for the parental generation. The offspring produced from this generation are called the "F1 generation," or first filial generation. Mendel conducted his experiments with these generations to study the inheritance of traits in pea plants.
What was mendels second experiments?
Mendel allowed the first generation plants to self pollinate.
What did mendel call the trait that appeared in all first generation plants?
Mendel referred to the trait that appeared in all first-generation plants as the "dominant" trait. In his experiments with pea plants, he observed that certain traits, such as flower color or seed shape, consistently overshadowed others in the offspring. The traits that did not appear in the first generation were termed "recessive." Mendel's work laid the foundation for the principles of heredity and genetics.
What results did Mendel get when allowed the first generation plants to self pollinate?
Mendel found that every fourth plant had white flowers when he allowed the first generation to self-pollinate. Gregor Mendel was a scientist who lived from 1822 to 1884.hyuyt6yt8
What results did mendel get when he allowed the first generation plants to self-pollinate?
Mendel found that every fourth plant had white flowers when he allowed the first generation to self-pollinate. Gregor Mendel was a scientist who lived from 1822 to 1884.hyuyt6yt8
What results did mendel get when he allowed the first-generation plants to self pollinate?
Mendel found that every fourth plant had white flowers when he allowed the first generation to self-pollinate. Gregor Mendel was a scientist who lived from 1822 to 1884.hyuyt6yt8
What results did mendel get when he allowed the first-generation plants self-pollinate?
Mendel found that every fourth plant had white flowers when he allowed the first generation to self-pollinate. Gregor Mendel was a scientist who lived from 1822 to 1884.hyuyt6yt8
What results did gregor mendel get when he allowed the first-generation plants to self-pollinate?
plants are able to rapidly produce vomit
What term did Mendel used to signify his true breeding first-generation?
parental generation
