In peas, the allele for round seeds (r) is dominant to the allele for wrinkled seeds (r). what would be the genotype and phenotype ratios of offspring from a cross between rr and rr individuals?

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.