What does not happen in the cytokinesis of plant cells?
A. Cell wall forms between the two daughter cells..
B. Vesicles from the golgi apparatus move along the microtubules and fuse form cell plate.
C. The two nuclei are segregated into separate daughter cells.
D. Formation of cleavage furrow to separate the cells.
E. When the vesicles fuse, their membranes contribute to the formation of plasma membrane on either side of the cell plate.
Answer: D
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Which type of regulatory protein(s) is/are present in Archaea?
A) Activators that stimulate RNA polymerase activity are present in Archaea. B) Repressors that block RNA polymerase activity are present in Archaea. C) Both activators and repressors are present in Archaea. D) Similar to regulation in Eukarya, Archaea lack bacterial-like regulators such as activators and repressors and use transcription factors instead.
If you discovered a new colonial organism living deep on the sea floor, how could you determine whether it reproduced sexually or asexually? (Check all that apply)
_____ Compare DNA to see if nearby individuals are identical. _____ Compare morphology to see if nearby individuals are identical. _____ Look for external buds still attached to the parent. _____ Look for a coelom. _____ Look for gonads with mitotic figures and embryos. _____ Look for gonads with meiotic figures and gametes. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about sexual vs asexual reproduction? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Proces Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In science, a theory is defined as ____
a. a speculative guess b. a hypothesis c. an explanation that is well documented and consistent with the evidence d. a description of a phenomenon for which there is no explanation e. a personal conviction
During prophase of mitosis, the
A. nucleus is preparing for the beginning stage of mitosis that will follow. B. chromosomes are so loosely coiled and stretched out that they are not yet visible. C. nucleoli and nuclear membrane disappear. D. zygote is formed.