key concepts 25.3

Question 1

why is conjugation between paramecia considered a sexual process but not a reproductive process ?

Answer 1

conjugation mixes genes between two paramecia but doesn’t create new ones , which why its sexual but not reproductive

Question 2

why do you think paramecia that are not allowed to conjugate begin to die after about 350 rounds of a sexual reproduction ?

Answer 2

without conjugation their DNA gets “worn out “ from constant copying , leading to problems that cause them to die after many rounds of reproduction .

Question 3

although most diploid animals have haploid stages their life cycles are not considered examples of alternation of generations why not ?

Answer 3

animals dont have multicellular haploid stage that can only live on its own, which is hy their life cycles aren’t examples of alternation of generations. only their reproductive cells are haploid, while the main organism is diploid