Another phenotypically wild-type female fruit fly heterozygous for the two genes mentioned in the previous prob- lem was crossed to a homozygous black, vestigial male. The cross produced the following progeny: gray body, normal wings 23; gray body, vestigial wings 127; black body, nor- mal wings 124; black body, vestigial wings 26. Do these data indicate linkage? What is the frequency of recombination? DIAGRAM the cross, showing the arrangement of the genetic markers on the chromosomes.

rain is the best answer

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.