FREE AND STUDY GAMES ABOUT BIO TEST 3 PART 1

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FREE AND STUDY GAMES ABOUT BIO TEST #3 PART 1

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -26 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: You are studying cell cycle progression in an early frog embryo. If you were to inject a protein synthesis inhibitor into a cell at the end of S phase, the cell would

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arrest in G2.Question 2: Following S phase, a human cell would have how many pairs of sister chromatids and individual DNA molecules?

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46 pairs of sister chromatids and 184 individual DNA molecules Question 3: Which of the following cell functions are maintained by cell division?

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growth and reproduction

Question 4: Which one of the following represents interphase?

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G1 + G2 = S

Question 5: The framework of microtubules that appears in cell division which eventually moves the chromatids apart is called the

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spindle apparatus.Question 6: The reduction division that separates two haploid complements from each other is called

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meiosis.

Question 7: The division of a bacterial cell occurs as the

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plasma membrane pinches inward constricting the cell.Question 8: The attachment of which molecules is critical for the proper separation of sister chromatids?

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microtubules

Question 9: PLANT cells typically achieve cytokinesis by

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forming a cell plate across the middle of the cell.Question 10: The proteins that participate in the functioning of the checkpoints for cell cycle control are

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cyclins and cyclin-dependant kinases.

Question 11: Crossing over chromosomes takes place in

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prophase I.

Question 12: Four chromatids are held together by a zipper-like structure.

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synaptonemal

Question 13: Microtubules become shorter, pulling chromatids to the ends of the spindle, during

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anaphase

Question 14: In one of the first steps in meiosis, the

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homologous pairs of chromosomes pair up alone their length.

Question 15: The actual process of cell division in prokaryotic cells is called

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binary fission.

Question 16: Cytokinesis occurs right after

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telophase.Question 17: The number of chromosomes characteristic of eukaryotes, in general,

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vary considerably from 2 to over 1000 in different species.

Question 18: ANIMAL cells typically achieve cytokinesis by

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forming a cleavage furrow that pinches the cell into two.Question 19: You are assembling a model of a chromosome, but begin having some trouble when you get to the solenoids. If you are unable to resolve this problem, which of the following steps of chromosome structure would you be unable to achieve?

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chromatin loop Question 20: The cell organelles replicate prior to genomic separation in ______ phase.

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G2

Question 21: Diploid organisms use meiosis for the development of gametes. Meiosis consists of how many rounds of nuclear division?

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two Question 22: You are comparing the events of meiosis I in cells from several different organisms. You come across one species in which you do not observe any chiasmata. Based on this information you are observing

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achiasmata segregation in Drosophilia males.Question 23: The point of connection between the two sister chromatids before anaphase of mitosis separates them is called the

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centromere.Question 24: You are studying meiosis in an organism that has 28 chromosomes as its diploid number. How many chromosomes will the cell have after meiosis II, but before cytokinesis?

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28

Question 25: The chromosomes line up at the equator of the spindle during

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metaphase.Question 26: Evidence of crossing over can often be seen under the light microscope as a structure known as a ________.

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chiasma