The order of genes on a plant chromosome is a, b, and d, where a and b have a recombination frequency of 0.2, and b and d have a recombination frequency of 0.3. a pure-breeding plant that has the dominant a and b phenotypes with a recessive d phenotype is crossed to a pure-breeding plant that has the recessive a and b phenotypes with the dominant d phenotype. the resulting hybrid is crossed to a plant that has all three recessive phenotypes. under the assumption that interference in this region is zero, what percentage of each progeny type would result from a single crossover between a and b?

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

What are characteristics of minerals? select 3 choices

How do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.