Answer:
50% portion are from mother...
Explanation:
If crossing over does not occur then 3 auto-somes as well as one X chromosome shall always come from mother. Even if two XX were present in case of a female 50% of chromosomes shall always be contributed by the mother...
The maximum percentage of net spendable income that should be set aside for transportation is : A. 15 %
If your transportation budget is more that, you might want to consider moving to a place that is nearer from your work
hope this helps
D. cell wall
both animals and walls have cell membranes for support
the cytoplasm holds the organelles in place