Answer:
The correct answer is option C. chromosome replication.
Explanation:
The cell cycle involves interphase and M- phase (mitosis or meiosis). DNA or chromosome replication takes place in interphase before Mitosis or meiosis phase of the cell cycle.
The replicated chromosomes are already present before mitosis initiation. Spindle formation takes place in the prophase of the mitotic. Centromere takes place in the shortest stage of mitosis which is anaphase.
Thus, the correct is option C. chromosome replication.
The option that does NOT occur during mitosis is chromosomes replicates. Therefore, option (B) is correct.
During mitosis, chromosomescondense and become visible as distinct structures, but they do not replicate. Chromosome replication occurs during the preceding interphase stage of the cell cycle.
In interphase, DNA is duplicated, resulting in the formation of two sister chromatids held together by a centromere. During mitosis, the centromeres do split, allowing the sister chromatids to separate and move to opposite poles of the cell. Additionally, spindles form during mitosis to help separate the sister chromatids.
Learn more about mitosis, here:
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B) chloroplasts
C) mitochondria
D) endoplasmic reticulum
Answer: Ribosomes
Explanation:
Eukaryotic cells contain membrane-bound organelles, for example animal cells and plant cells. While prokaryotic cells don't, for example bacteria.
Since chloroplasts, mitochondria and endoplasmic reticulum are membrane-bound organelles, which meas that these organelles are surrounded by a phospholipid bilayer, they are only found in eukaryotes.
Endoplasmic reticulum is responsible for protein folding, modification and transport. Chloroplast is responsible for photosynthesis in plants, and mitochondria is responsible for cellular respiration. And, ribosomes is the organelle where protein synthesis takes place, and this happens in both Eukaryotic and Prokaryotic cells.
Answer:
The human brain undergoes rapid growth from birth to age 2. During this period, it approximately triples in size, with most of the development happening in the first year of life. This growth is primarily due to the formation of new neural connections and the myelination of existing ones, which is essential for cognitive and motor skill development in early childhood.
Answer:
Prefrontal cortex
Explanation:the prefrontal cortex is the forward most part of the frontal lobe.it consists about 10% of the brain..it is associated with making decisions and evaluation of right and wrong.it could also influence the personality of a person.
A damage to the prefrontal cortex can cause change in Personality, rudeness and make the person incapable of making good judgement and social skills.
Phagocytes
Erythrocytes
Answer:
The answer is B: Phagocytes.
Explanation:
Hope this helped ya.
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