Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

ooo T-Mobile LTE 10:15 PM KBack 2 Messages Hi 4 tre Credit (31-36 1pt each) 31.

ID: 274146 • Letter: O

Question

ooo T-Mobile LTE 10:15 PM KBack 2 Messages Hi 4 tre Credit (31-36 1pt each) 31. Some anticancer gents interfere with the proper functioning of microtubule do these anticancer agents work? a. They ishibit the mitotic spindle and prevent cell division b. They inhibit the contractile ring and prevent cell division c. They inhibit telophase because microtubales are required to form nuclear envelopes d. Microtubules replicate DNA, so they inhibit chromosome duplication 32 Which of the following structures is involved in forming a cleavage furrow? a sister chromatids b. mitotic spindle c metaphase plate d contractile ring 33. Why is prokaryotic cell division fundamentally different from eukaryotic cell division? a. Prokaryotic cells divide for several months and then live for decades without dividing b. Prokaryotic cells do not have a plasma membrane c. Prokaryotes have many more chromosomes to divide d. Prokaryotic cells have a single chromosome and no nuclear membrane 34. What is one of the differences between cell division in plant cells and cell division in animal a. Plant cells separate chromosomes by attachment to the plasma membrane b. There is no DNA replication before cell division in plant cells c. Plant cells do not use a mitotic spindle to separate chromosomes d. Plant cells separate by the formation of a new plasma membrane and cell wall in the of the cell. 35. What would the consequence be if spermatogonia were not stem cells a. Only a limited quantity of sperm could be produced by males, and then no more cou produced b. Sperm would be diploid rather than haploid c Sperm would have to be produced by mitosis instead of meiosis d. Mature spermatids would make more sperm by melosis 36 A person with an inherited disorder has children with a person who does not have the con Ali the children have the disorder, both sons and daughters. How is this condition a autosomal dominant b. autosomall recessive c. X-linked dominant d. X-linked recessive

Explanation / Answer

31. a.

As spindles are required for cell division.

32. d. contractile ring

Animal cell cleavage furrow formation is caused by a ring of actin microfilaments called the contractile ring, which forms during early anaphase. ... During cellular cleavage, the contractile ring tightens around the cytoplasm of the cell until the cytoplasm is pinched into two daughter cells.

33. d

Prokaryotes lack centriole which initiates cell division and they have just a single chromosome. They even lack well-developed nucleus.

34. d

the mode of separation is different

35. a

36. Question is not visible properly