View the above sex-linked recessive pedigree. Can you be certain of generation I, individual #1’s genotype? Why or why not? All males receive their X chromosome from their How are sex-linked pedigrees different from autosomal pedigrees? How many dominant alleles does an individual need in order to have the autosomal dominant trait? Is it possible to know the genotypes of the three children in generation III? Should their shapes be shaded?

Which of the following scenarios is an example of the bottleneck effect? answers a in south africa, much of the afrikaner population is descended from a small number of dutch colonists. in this population, this is an unusually high frequency of pseudoxanthoma elasticum (pxe), an elastic tissue disorder. b four white-tailed deer are introduced to a park in finland. thirty years after their introduction scientists compare the genes in the population and find that there is no variation. c during the industrial revolution, london's air became filled with soot. as a result, birds started eating more of the lighter moths because they were easier to spot than their darker counterparts. over time, the moth population changed so that there were more darker moths than lighter ones. d 10% of the population of american alligators in an area have the recessive trait albinism. a massive flood results in the death of 80% of the population. of the remaining population, 60% have the recessive trait of albinism.

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean