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The slow block to polyspermy is caused by changes in the egg's membrane potential and increased intracellular calcium levels, which prevent additional sperm from fertilizing the egg. This physiological response allows only one sperm to successfully fertilize the egg and prevents the formation of abnormal embryos with multiple paternal contributions.
What else can I help you with?
What force causes things to slow down due to contact?
Friction is the force that causes things to slow down due to contact. When two surfaces rub against each other, friction generates resistance that opposes the motion, ultimately causing the objects to slow down.
How does kinetic friction affect the motion of a block in a block-and-pulley system?
Kinetic friction in a block-and-pulley system opposes the motion of the block, causing it to slow down and potentially come to a stop. This frictional force acts in the direction opposite to the motion of the block, reducing its speed and affecting its overall motion within the system.
What force causes a bike to slow down when you stop pedalling?
Friction causes the bike to slow down.
What is the force that causes moving objects to slow down?
The force that causes moving objects to slow down is called friction. It occurs when two surfaces are in contact and resist the relative motion between them. Friction converts kinetic energy into heat, causing objects to lose speed.
What factor causes the motion of a car to slow down as it is moving up the slope of a mountain?
The main factor that causes the motion of a car to slow down as it moves up a slope is gravity. Gravity acts in the opposite direction to the car's motion, pulling it back down the slope. This force opposes the car's forward movement, making it slow down.
What prevents polyspermy from occurring?
polyspermy is a egg that was fertilized by multiple sperm. This is a major problem in most cells because due to this, there will be no sign of diploidy (2 set of chromosomes). The egg prevents this during the acrosomal process. The contact between the acrosome and the vitelline envelope triggers the egg to release Ca+ which changes the charge under the plasma membrane. This prevents other sperms from interacting. This is the first way that it is prevented. This way is often referred as the "Rapid Block" For the "Slow Block", The cortical granules inside the egg (they're like these tiny vesicles just under the plasma membrane) fuse with the egg plasma membrane. this in turn triggers swelling of the space betweel the vitelline envelope and the plasma membrane. Afterwards, the vitelline envelope hardens.
Why polyspermy bad?
Polyspermy, the fertilization of an egg by multiple sperm, is detrimental because it leads to an abnormal number of chromosomes, resulting in genetic imbalances. This can cause developmental issues, embryo lethality, or infertility. In many organisms, mechanisms exist to block polyspermy, ensuring that only one sperm fertilizes the egg to maintain proper genetic integrity.
Result of polyspermy in humans is?
Nonfunctional zygote
What is polyspermy in humans?
Polyspermy is when more than one sperm penetrate one egg during conception. Normally, there are blocks to polyspermy because humans are generally monospermic - only one sperm and one egg can create a viable zygote. Thus, there are biological blocks to polyspermy in humans.
Why is polyspermy bad for fertilization?
Polyspermy is bad for fertilization because it results in the fertilized egg having an abnormal number of chromosomes, which can lead to developmental abnormalities and prevent the embryo from developing properly.
One consequence of the acrosomal reaction is?
One consequence of the acrosomal reaction is the release of enzymes that help the sperm penetrate the zona pellucida surrounding the egg. This allows the sperm to reach and fertilize the egg.
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balls. balls will slow shafting
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you have viriuses
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A parachute... •_•
