Please answer all the questions below as well. 19. Eukaryotic cells tightly regu
ID: 73858 • Letter: P
Question
Please answer all the questions below as well. 19. Eukaryotic cells tightly regulate transitions between the different phases of the cell cycle by very transient (brief) expression of activate a. Cyclins; CDKs. b. CDKs; Cyclins. c. Mitogens; CDKs. d. CDKs; Mitogens. e. Emotional issues; political action. -that a 20. Eukaryotic DNA Polymerase, helicase, and primase are all most active during a. Mitosis b. Meiosis c. G1 phase d. S phase e. G2 phase 21. Which of the following Eukaryotic molecules or complexes is NOT matched with its proper function? a. Heterochromatin - actively expressed DNA b. RNA Polymerase I-transcribe rRNA's c. RNA Polymerase II -transcribe mRNA's d. RNA Polymerase III -transcribe tRNA's e. TF-II-D -binds to TATA sequence of core promoter 22. Cyclin-Dependent Kinases are a. Able to regulate other proteins by phosphorylating them b. Activated by allosteric control c. Constitutively expressed d. Required for cell cycle progression e. All of the above 23. One difference between mitosis and meiosis I is that a. homologous chromosome pairs synapse during b. chromosomes do not replicate in the interphase c. homologous chromosome pairs synapse during d. spindles composed of microtubules are not e. sister chromatids separate during meiosis but not mitosis. preceding meiosis. meiosis but not during mitosis. required during meiosis. during mitosisExplanation / Answer
19.
a. cyclins, CDKs
20.
d. S phase
21.
a. heterochromatin-actively expressed DNA
22.
e. all of the above
23.
c. homologous chromosome pairs synapse during meiosis but not during mitosis
24.
e. all of the above
25.
e. all of the above
26.
d. cell wall matrix filled vesicles fuse at the cell plate
27.
a. at the end of telophase
28.
b. meiotic anaphase I