During meiosis, homologous Liromosomes line up next to each other. In some cases, one arm of a chromatid crosses over the arm of another chromatid. What is the result
of this process?

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d