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Mendel used a number of contrasting visible characters of garden peas. Which one of the following options appropriately fills the below blank space? A. Round / Wrinkled seeds B. Tall / Short plants C. White / ________ flowers
Yellow
Green
Violet
Pink
Violet
Gregor Mendel identified seven pairs of contrasting visible characters in pea plants. The flower color trait consists of the dominant trait (Violet/Purple) and the recessive trait (White).
Gregor Mendel identified seven pairs of contrasting visible characters in pea plants. The flower color trait consists of the dominant trait (Violet/Purple) and the recessive trait (White).
Think of it like a volume knob that is either 'full' (dominant) or 'off' (recessive); if you have at least one 'full' gene, the color is expressed as violet, and only when both are 'off' do you get white.
Mendel's 7 Traits: 'T-S-S-F-F-P-P' (Tall/Short, Smooth/Wrinkled, Seed color, Flower color, Flower position, Pod color, Pod shape).
P=AA├Чaa
F1тАЛ=Aa
In Mendelian genetics, the flower color of Pisum sativum is determined by a single gene with two alleles. The allele for violet flower color is dominant over the allele for white flower color, meaning a plant will express the violet phenotype if it possesses at least one dominant allele.
Flower color is one of the seven key phenotypic traits studied by Mendel.
Violet (or Purple) is the dominant color, and White is the recessive color in garden peas.
Mendel's experiments on these traits formed the foundation of modern classical genetics.
Clear, discrete qualitative traits allow for easy statistical observation.
Short generation time of the pea plant allows for quick data collection.
Does not account for polygenic inheritance where multiple genes contribute to a single trait.
Does not cover incomplete dominance or codominance phenomena observed in other species.
Used in agricultural breeding to select for desirable traits.
Fundamental for understanding hereditary patterns in human genetic diseases.
Mendel's seven traits include: Stem Height (Tall/Dwarf), Seed Color (Yellow/Green), Seed Shape (Round/Wrinkled), Pod Color (Green/Yellow), Pod Shape (Inflated/Constricted), Flower Color (Violet/White), and Flower Position (Axial/Terminal).
Option D (Violet) is the correct pair for the blank in the question as it represents the contrasting character to white.
D is correct тАФ The contrasting character to White flowers in Mendel's pea plant study is the Violet flower color.
When memorizing Mendel's traits, always remember the dominant trait first: Violet flowers, Tall stems, and Yellow seeds are the dominant variants.
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