Answer: C. The C horizon is very deep.
Horizons are the layers of soil develops as a result of soil formation. Horizon lies parallel to the earth surface. Each horizon differs from the other on the basis of amount or organic matter present, color of the soil, texture of soil and other components making up horizon, and amount and type of minerals present in the soil.
C horizon is the horizon that lies deeper region of the collective soil horizon. It consist of unweathered or partially weathered rocks or their aggregates. Therefore, it retains the original chemical composition of the parent rock. This results in the higher mineral content as compared to other horizons. This horizon also lacks the organic matter as no or very little decomposition activity of plant and animal matter takes place. Therefore, color of soil in this horizon in the absence of organic matter remains light.
Hence, a sample of soil from a C horizon is light brown in color and has a high content of a mineral called feldspar is because of the fact that the C horizon is very deep.
A population of 20,000 individuals is surveyed and found to be composed of 9,800 individuals with blond hair and 10,200 with brown hair. The allele for blond hair "b" is recessive to the allele for brown hair "B". Assuming Hardy-Weinberg conditions, the frequency of the Bb genotype in the population is 42%.
<h3>What is Hardy Weinberg equilibrium?</h3>
Hardy Weinberg law states that,
“In a large, random-mating population, the genotype and allele frequencies remain constant in the absence of any evolutionary influences from one to another generation. Influences are inclusive of a choice of mate, natural selection, genetic drift, mutation, sexual selection, gene flow, genetic hitchhiking, founder effect, meiotic drive, population bottleneck, inbreeding and assortative mating.”
Application of Hardy Weinberg equilibrium,
- The Hardy-Weinberg equilibrium provides a mathematical criterion of a population that is non-evolving which can be compared to evolving populations.
- The law offers a prototype which is typically used as a point of origination to study the population genetics of diploid entities, which fulfil the fundamental assumption of random mating, large population, no mutation, migration or selection.
- Allele frequencies can be detected in the presence of complete dominance when Hardy-Weinberg equilibrium prevails wherein it is not possible to differentiate between two genotypes.
To learn more about Hardy Weinberg equilibrium,
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Cytosine binds with guanine, therefore there will be the same percentage of guanine nucleotides as cytosine.
100-38-38 is 24% adenine and thymine
24/2=12%thymine
A. Extending their cytoplasm. Hope this helps, and brainliest answer would be great, so I can rank up.