Describe how the mitochondrion evolved as an organelle, using the endosymbiont hypothesis
What will be an ideal response?
The mitochondrion probably began as an aerobic bacterium that was engulfed, but not digested, by another prokaryotic cell. The two cells began a symbiotic relationship that persisted, with the host cell providing protection and nutrients to the aerobic bacterium, which in turn provided adenosine triphosphate (ATP) or similar molecules to its host.
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A woman with normal blood clotting mates with a man who also has normal blood clotting. Their first child is a boy
who has hemophilia. Tests show that the child's hemophilia is X-linked and that he has normal genetic inheritance. You can predict that if the couple has more children together, then it is likely that ____.
a. all of the children will have hemophilia b. half of the boys and none of the girls will have hemophilia c. none of the rest of children should have hemophilia d. all of the boys and half of the girls will have hemophilia e. half of the boys and half of the girls will have hemophilia
Amoeba is a term used to describe unicellular protists that move by means of flagella
Indicate whether the statement is true or false.
Which of the following is not a function of the nuclear division process of mitosis in eukaryotic organisms
1.increase in body size 2.tissue repair in multicelled eukaryotes 3.asexual reproduction 4.sexual reproduction
?
Figure 41.1A
The organism shown above is using which of the following types of reproduction?
A. Asexual budding B. Sexual production of eggs C. Hermaphroditic cofertilization D. Fragmentation E. Parallel fertilization