A student was given two permanent slides, one of binary fission in amoeba and other of budding in yeast. He was asked to identify any one difference in the nucleus of the two. One such difference, he indentified correctly was; A. Presence of one nucleus in amoeba, two in yeast cell and one in bud.; B. Presence of two nuclei centrally constricted amoeba, one in yeast cell and one in its bud.; C. Presence of two distant nuclei in amoeba, one in yeast cell and two in bud.; D. Presence of a single nucleus each in amoeba, yeast cell and its attached bud.(Delhi - 2011)
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B. Presence of two nuclei centrally constricted amoeba, one in yeast cell and one in its bud.
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Correct option is - B. Presence of two nuclei centrally constricted amoeba, one in yeast cell and one in its bud.
Budding and binary fission both are modes of reproduction in lower organisms. These are asexual modes of reproduction.
Nucleus divides in parental cells and newly divided seperates to reach new cell.
In binary fission, nuclear replication occurs and then seperation takes place, thus it appears as centrally constricted.
Amoeba and yeast both are single celled organisms but former is eukaryotic while latter is prokaryotic.
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