In both mitosis and meiosis, _________ must occur for the process to continue to completion.
A) crossing over
B) reduction division
C) chromosome replication
D) Homologous chromosomes form tetrads
I don't know what to put. Please help :D
To determine the correct answer to this question, let's break down the options and consider each one.
A) Crossing over: This occurs during meiosis but not during mitosis. It is the exchange of genetic material between homologous chromosomes. Since the question asks about both mitosis and meiosis, we can eliminate this option.
B) Reduction division: This term is synonymous with meiosis, as it refers to the process by which the number of chromosomes is reduced by half. Mitosis, on the other hand, does not involve reduction division. So, this option is specific to meiosis.
C) Chromosome replication: This process occurs during both mitosis and meiosis. Before a cell can divide, its DNA must replicate to ensure that the resulting daughter cells have a complete set of genetic information. Therefore, this option is valid for both mitosis and meiosis.
D) Homologous chromosomes form tetrads: This refers to a stage in meiosis where homologous chromosomes align and pair up. It does not occur during mitosis, so we can eliminate this option.
Based on our analysis, we can conclude that the correct answer is:
C) Chromosome replication.
Both mitosis and meiosis require chromosome replication for the process to continue to completion.
In both mitosis and meiosis, chromosome replication must occur for the process to continue to completion. Chromosome replication is the process by which each chromosome duplicates itself to form two identical sister chromatids. This ensures that each new cell produced during mitosis or meiosis has the correct number of chromosomes. Therefore, the correct answer is C) chromosome replication.
B, Reduction Divison.
Hope This Helps
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