Meiosis and mitosis differ from each other because in meiosis
- AThe four nuclei formed are not similar to parental ones
- BHomologous chromosomes pair and exchange parts
- CNumber of chromosomes gets halved
- DAll the above
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Similar Questions
Match the description (given in Column $I$) with the correct stage (given in Column $II$) and choose the correct option.
Column $I$ Column $II$ $A$. Chromosomes are moved to spindle equator $I$. Pachytene $B$. Centromere splits and chromatids move apart $II$. Zygotene $C$. Pairing between homologous chromosomes takes place $III$. Anaphase $D$. Crossing over between homologous chromosomes $IV$. Metaphase
| Column $I$ | Column $II$ |
| $A$. Chromosomes are moved to spindle equator | $I$. Pachytene |
| $B$. Centromere splits and chromatids move apart | $II$. Zygotene |
| $C$. Pairing between homologous chromosomes takes place | $III$. Anaphase |
| $D$. Crossing over between homologous chromosomes | $IV$. Metaphase |
MediumAIIMS 2017
View SolutionWhat occurs during mitosis?
Medium
View SolutionMatch the following columns correctly:
Column-$I$ Column-$II$ $(A)$ Prophase $(i)$ Nuclear envelope and other organelles reform $(B)$ Metaphase $(ii)$ Chromosomes align at the equator $(C)$ Anaphase $(iii)$ Formation of spindle fibers $(D)$ Telophase $(iv)$ Splitting of centromere and chromatid separation $(E)$ Cytokinesis $(v)$ Formation of multinucleated condition
| Column-$I$ | Column-$II$ |
| $(A)$ Prophase | $(i)$ Nuclear envelope and other organelles reform |
| $(B)$ Metaphase | $(ii)$ Chromosomes align at the equator |
| $(C)$ Anaphase | $(iii)$ Formation of spindle fibers |
| $(D)$ Telophase | $(iv)$ Splitting of centromere and chromatid separation |
| $(E)$ Cytokinesis | $(v)$ Formation of multinucleated condition |
Medium
View SolutionMatch the following events that occur in their respective phases of cell cycle and select the correct option:
Column $I$ Column $II$ $(a)$ $G_{1}$ phase $(i)$ Cell grows and organelle duplication $(b)$ $S$ phase $(ii)$ $DNA$ replication and chromosome duplication $(c)$ $G_{2}$ phase $(iii)$ Cytoplasmic growth $(d)$ Metaphase in $M$-phase $(iv)$ Alignment of chromosomes
| Column $I$ | Column $II$ |
| $(a)$ $G_{1}$ phase | $(i)$ Cell grows and organelle duplication |
| $(b)$ $S$ phase | $(ii)$ $DNA$ replication and chromosome duplication |
| $(c)$ $G_{2}$ phase | $(iii)$ Cytoplasmic growth |
| $(d)$ Metaphase in $M$-phase | $(iv)$ Alignment of chromosomes |
$A$ cell has $32$ chromosomes. It undergoes mitotic division. What will be the chromosome number $(n)$ during metaphase? What would be the $DNA$ content $(c)$ during anaphase?
Medium
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