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

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

Please be informed that I'm only answering first four questions as per Chegg's policy.

31. The chemotherapy agent which interfere with the functioning of microtubule inhibit the polymerization of tubulin, which in turn prevents mitotic spindle formation in the cells and prevents the cells from dividing. Therefore, your answer is (a). Option (b) is incorrect as chemotherapy agents do not inhibit contractile ring. Options (c) and (d) are incorrect as they do not refer to microtubule formation and inhibition.

32. In an animal cell cleavage furrow formation is caused by a ring of actin microfilaments known as the contractile ring. Therefore your answer is (d). Options (a), (b), and (c) are parts of cell divison but not the formation of cleavage furrow.

33. Cell divison in prokaryotic cell is simpler than eukaryotic cell mainly because of simpler cell structure of prokaryotic cell (no nucleus or nuclear membrane). While prokaryotic cells divide via binary fission , eukaryotic cells divide via mitosis where nucleus of the cell divides. Therefore, your answer is (d). Options (a), (b), and (c) are incorrect because prokarotic cells do not take several months to divide, prokaryotic cells do have plasma membrane and prokaryotic cells have lesser number of chromosomes to divide respectively.

34. Both plant and animal cells undergo mitotic cell divison. the difference lies in how they form daughter cells in cytokinesis. In plant cell, formation of daughter cells take place by the formation of new plasma membrane and cell wall in the middle of the parent cell while in animal cell daughter cells form via formation of furrows. Therefore, your answer is (d). Options (a), (b), and (c) are incorrect because plant cells do not separate chromosomes by attaching to the plasma membrane, DNA replication takes place before cell divison in plant cell, plants do use mitotic spindle to separate chromosome respectively.

Thanks!

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.