Jamal’s father and grandmother are both diabetic. jamal shows no signs of diabetes.
which most likely explains why jamal never suffers from diabetes even though he has the genes that can cause it?

1.he got the diabetes genes from his father.
2.he refrigerates his food so it will not spoil.
3.he lives in a city with good air quality.
4.he makes healthy lifestyle choices.

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.