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How does prophase you of meiosis differ from prophase of mitosis?
a. chromatids do not separate at the centromere in anaphase I. b. centromeres do not exist in anaphase I. c. crossing-over occurs only in anaphase of miitosis
How does a tetrad form in prophase I of meiosis?
In prophase I, doubled homologous chromosomes group together to form a tetrad.
When does the nucleus reappear?
False, No it is the only phase where it disappears. It directly says it comes back in telophase but may be present during all other phases EXEPT prophase.
What can scientist infer from the similarties between these two structures?
We would need to know what the two structures are to respond to this question.
What two structures found in the skin aid in heat loss when the temperature of the body is high?
The two structures that are found in the body during heat loss are the hairs on our skin and the glands. The hairs trap more warmth that enters the skin and the glands of our body stash the sweat into the surface to reduce the warm feeling, and by this, it cools our body.
When does the nuclear membrane disappear during mitosis?
The nuclear membrane disappears during prophase of mitosis. This allows the chromosomes to be condensed and move freely within the cell. At the end of mitosis, during telophase, the nuclear membrane reforms around the separated chromosomes.
The nucleus and nucleolus disappear during what?
The nucleus and nucleolus disappear during cell division, specifically during the prophase stage of mitosis. This is when the nuclear envelope breaks down, allowing the chromosomes to condense and become visible. The nucleolus also disappears as the cell prepares to divide into two daughter cells.
What are the two tiny structures located in the cytoplasm near the nuclear envelope at the beginning of prophase?
The two tiny structures located in the cytoplasm near the nuclear envelope at the beginning of prophase are the centrioles. They play a crucial role in organizing the spindle fibers that help separate the chromosomes during cell division.
During prophase what structures are held together by the centromeres?
The sister chromatids are held together by the centromeres. Each chromosome is made up of two sister chromatids.
What are the two tiny structures located in the cytoplasm near the nuclear at the beginning of prophase?
the centrioles =)
What are two tiny structures located in the cytoplasm near the nuclear envelope at the beginning of prophase?
the centrioles =)
What are the two tiny structures located in the cytoplasm near the nuclear envelope at the beginning prophase?
the centrioles =)
How many cells are in prophase?
During prophase, a cell typically contains 46 chromosomes, which are made up of two sister chromatids each. This means there are a total of 92 chromatids in a cell during prophase.
What cellular structures move to opposite ends of the cell during prophase?
It's the CENTRIOLES and their star-like radiating structures, called asters.This is Stage 1 in Mitosis:Chromatin in the nucleus condenses to form chromosomes. The pairs of centrioles move to the opposite sides of the nucleus. Spindle fibers form a bridge between the ends of the cell. The nuclear envelope breaks down.
Number of cells during prophase?
During prophase of mitosis, the number of cells remains constant. Prophase is the first stage of mitosis where the nucleus condenses and the chromosomes become visible, but the cell itself does not divide yet.
The two small structures that separate and take up positions on opposite sides of the nucleus during prophase are the?
The centrosomes, which contain the centrioles in animal cells, not plant cells.
During this phase of mitosis two centrioles appear to one side of the nucleus.?
prophase
