Which option below best illustrates a heritable quantitative trait?

a. phenotype only affected by a single gene with a dominant and recessive allele.
b. continuous variation in a phenotype, with offspring that resemble their parents.
c. discrete phenotypic classes. variation in a trait that is determined only by environment.
d. crossing extreme phenotypes produces a phenotypic ratio of 9: 3: 3: 1 in the offspring.

The correct answer is B. Continuous variation in a phenotype, with offspring that resemble their parents.

Explanation:

A heritable quantitative trait is a phenotype that can be measured and depends on the total actions of various genes, and the environmental conditions. Such traits can be different among different individuals, over a range, to generate a continuous proportion of phenotypes.

In a continuous variation, each value of the phenotype is following up to the value of before.

Thus, the correct answer is option B.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.