Parents can pass on chromosomes to their children that are different than their own when the new gene combinations are created by
Responses
A crossing over of sister chromatids during meiosis.crossing over of sister chromatids during meiosis.
B crossing over of sister chromatids during mitosis.crossing over of sister chromatids during mitosis.
C crossing over of homologous chromosomes during mitosis.crossing over of homologous chromosomes during mitosis.
D crossing over of homologous chromosomes during meiosis.
D crossing over of homologous chromosomes during meiosis.
All of the following circumstances, EXCEPT ___________ can produce new combinations of genetic traits in sperm and eggs that are different from the parents.
Responses
A errors during meiosiserrors during meiosis
B errors during mitosiserrors during mitosis
C crossing over during meiosiscrossing over during meiosis
D mutations due to exposure to chemicals
B errors during mitosis.
All of the following are effects of crossing over of homologous chromosomes during prophase I of meiosis with the EXCEPTION of
Responses
A increased genetic variety.increased genetic variety.
B increased number of chromosomes in the offspring.increased number of chromosomes in the offspring.
C the appearance of new phenotypes in the offspring.the appearance of new phenotypes in the offspring.
D possible harmful mutations from cross-over errors.