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In Vorticella, the total number of micronuclei formed at the end of pre-zygotic nuclear division in female gamete is

A
4

B
6

C
8

D
5

Text SolutionText solutionverified iconVerified

In , in macroconjugant, micronucleus undergoes two divisions forming 4 nuclei (or micronuclei), 3 of which disintegrate and the remaining one becomes the female pronucleus.
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G. (8 hours of mo ycle er Interphose . Organelle ONA replication duplication S (6-8 hours) have gap phase some cells spend fe in gap phase. e cells are said to s this G, phase? sion 'M' stands 4-phase involves =. Karyokinesis is wo daughter nuclei on of cytoplasm 3. vision are found nitosis or direct et division and n. Mitosis can be as diploid cells by diploid cells op from haploid In Marchantia te by mitosis. division. During amitosis, and a constriction appears somewhere along its length. This constriction deepens and divides the nucleus into two daughter nuclei. This is followed by the division of the cytoplasm which results in the formation of two daughter cells. This division occurs in unicellular organisms, abnormal cells, old cells and in foetal membrane cells. www.Internet my friend 728 Karyokinesis is nuclear division which is sub-divided into prophase, metaphase, anaphase, and telephase. Although for the sake of convenience above mentioned steps are used, it must be remembered that mitosis is a continuous process that starts with the disappearance of nuclear membrane in prophase and ends with separation of two fully formed cells after cytokinesis. What is Karyogram or Karyotype? B. Mitosis: This is a type of cell division lie at equatoria in which a cell divides to form two identical daughter cells which are identical to the parent fully formed. called metapho cell. It is completed in two steps as karyokinesis and cytokinesis. 1. Prophase: This phase involves condensation of chromatin material, migration of centrioles, appearance of mitotic apparatus and disappearance of nuclear membrane. Early prophase Centrioles Nuclear membrane Condensed chromosomes EXE Cromatine material Fig. 7.2 Prophase Nucleolus Chromosome Late prophase Nuclear membrane disappears. which cull to disappear. Nu connected by cer and disappeares had undergone cell. Mitotic app begins to move formed. 77 2. Metaphase : are completely very short. Siste become very pro centromere. Ce divides horizon two, each being Spindle fibres 3. Anaphase chromosome chromosomes The formed ch in opposite dir Chromosomes a bunch of bane of chromosomes cells marks the e Fig.
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Question Text
In Vorticella, the total number of micronuclei formed at the end of pre-zygotic nuclear division in female gamete is
TopicBiological Classification
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes16