The correct answer would be B, large sections of the earth's crust.
The phenotypic ratio in this case is 9:3:3:1.
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What is phenotypic ratio?</h3>
- A phenotypic ratio is a numerical comparison of two phenotypes that demonstrates how frequently the occurrence of one trait corresponds with another.
- The phenotypic ratio produced from a test cross is used by researchers to determine the gene expression for generations of an organism.
- A test cross is a technique used in genetics to investigate and collect potential genotypes and traits of offspring of organisms. An organism's genotype is its genetic make-up; it lists the alleles and genes that the particular organism possesses.
- The expression of genes and alleles in observable traits is referred to as the phenotype. Eye color, height, and even hair texture are examples of phenotypes.
To learn more about phenotypic ratio with the given link
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Question:
Two pea plants are crossed. Both are heterozygous for purple blossom color, while one is homozygous for being short and the other is heterozygous for being tall. In pea plants, tall is dominant to short, and purple flowers are dominant to white. Find the phenotypic ratio.
Synovial joints and muscular system
Answer:
the mechanism that darwin proposed for evolution is natural selection . because resources are limited in natural organisms with heritable traits that favour survival and reproduction will tend to more offspring than their peers ,causing the traits to increase in frequency over generation .
Explanation:
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