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Describe the 6 stages of mitosis?
Prophase: in this stage of the mitosis the nuclear envelop disentigrate, and the centeoles began forming on both sides of the cell, and the spindle fibre form Metaphase: in metaphase the spindle fibre attach to the centromere and the chromosomes lined up in the middle of the cell. Anaphase: Telophase
What is the epiglottis attached to which structure?
The epiglottis is attached to the thyroid cartilage at the base of the tongue in the throat. It acts as a flap to cover the entrance to the trachea during swallowing to prevent food or liquid from entering the airway.
Regulatory proteins that serve to prevent a cell from entering the S phase?
Some examples of regulatory proteins that prevent a cell from entering the S phase include the retinoblastoma protein (Rb), which acts as a tumor suppressor by inhibiting cell cycle progression, and the cyclin-dependent kinase inhibitors (CDKIs) like p21 and p27, which regulate CDK activity to block S phase entry. These proteins help maintain normal cell cycle control and prevent uncontrolled cell proliferation.
How do the chromosomes get to the stage of meiosis prophase?
A nucleus is signals the rest of the cell that the cell is ready to undergo meiosis, in which case the chromosomes begin to condense with the help of histones, which is the beginning of prophase I of meiosis.
Are the chromosomes single or double in meiosis?
Chromosomes are double in meiosis. They replicate during interphase before entering the meiotic stages (prophase, metaphase, anaphase, telophase) in order to separate into single chromosomes during cell division.
Do external regulators prevent the cell from entering anaphase until its chromosomes are attached to the mitotic spindle?
yes
DO external regulators prevent the cell from entering anaphase until all its chromosomes are attached to the mitotic spindle?
yes
What are internal regulate?
Internal Regulators Proteins that respond to events inside the cell are called internal regulators. Internal regulators allow the cell cycle to proceed only when certain processes have happened inside the cell. For example, several regulatory proteins make sure that a cell does not enter mitosis until all its chromosomes have been replicated. Another regulatory protein prevents a cell from entering anaphase until all its chromosomes are attached to the mitotic spindle. Internal Regulators Proteins that respond to events inside the cell are called internal regulators. Internal regulators allow the cell cycle to proceed only when certain processes have happened inside the cell. For example, several regulatory proteins make sure that a cell does not enter mitosis until all its chromosomes have been replicated. Another regulatory protein prevents a cell from entering anaphase until all its chromosomes are attached to the mitotic spindle. Internal regulators are proteins that respond to activity within a cell.
Describe the 6 stages of mitosis?
Prophase: in this stage of the mitosis the nuclear envelop disentigrate, and the centeoles began forming on both sides of the cell, and the spindle fibre form Metaphase: in metaphase the spindle fibre attach to the centromere and the chromosomes lined up in the middle of the cell. Anaphase: Telophase
When operating an electric pallet jack before entering a trailer that is not is not attached to a tractor always make sure that answer it?
when operating an electric pallet jack before entering a trailer that is not attached to a tractor always make sure that answer it
What prevents other sperm from entering the egg once a sperm has entered it?
No, but the egg does.
What items could you possibly use to rescue someone without entering the water?
any type of floatation device that is attached to a rope so you could pull them to you with out entering the water
How does a daughter cell at the end of mitosis differ from its parent cell entering mitosis?
A daughter cell at the end of mitosis is smaller and has a duplicate set of chromosomes compared to its parent cell entering mitosis. Additionally, the daughter cell has identical genetic information to its parent cell.
When operating a forklift before entering a trailer that is not attached to a tractor what should you check?
Make sure that the trailer wheels are chocked.
What is the epiglottis attached to which structure?
The epiglottis is attached to the thyroid cartilage at the base of the tongue in the throat. It acts as a flap to cover the entrance to the trachea during swallowing to prevent food or liquid from entering the airway.
Regulatory proteins that serve to prevent a cell from entering the S phase?
Some examples of regulatory proteins that prevent a cell from entering the S phase include the retinoblastoma protein (Rb), which acts as a tumor suppressor by inhibiting cell cycle progression, and the cyclin-dependent kinase inhibitors (CDKIs) like p21 and p27, which regulate CDK activity to block S phase entry. These proteins help maintain normal cell cycle control and prevent uncontrolled cell proliferation.
What is the colored membrane attached to the ciliary body?
The colored membrane attached to the ciliary body is the iris. The iris is located in front of the lens of the eye and is responsible for controlling the size of the pupil, which regulates the amount of light entering the eye.
