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What is one advantage of prezygotic isolation and postzygotic isolation?
Bri27
Prezygotic means something that occurs before a zygote is formed or the completion of fertilization. Postzygotic is an even that occurs after the fertilization or formation of a zygote.
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What is Mechanical Isolation?
There are two types: prezygotic and postzygotic. Prezygotic barriers prevent mating from even happening. If mating does occur, postzygotic barriers reduce the chances that an offspring will survive before being born. One prezygotic reproductive barrier is mechanical isolation.
Which one of the following is an example of a postzygotic reproductive barrier A Hybid sterility B habitat isolation C Gamete isolation?
Hybid sterility would be a barrier to postzygotic reproduction. This means that the hybid is sterile. Hybid breakdown and inviability are also barriers.
What can keep two populations from interbreeding?
Many things. Just physical differences, a mouse is not going to breed with an elephant. Behavioral difference, such as mating dances, calls and the like. Temporal differences, such as one organism is diurnal and the other is nocturnal, or seasonal differences. These are called prezygotic barriers to reproduction. Postzygotic barriers can be as simple as a sterile match, such as horses and donkeys. Then there is just physical barriers, such as mountains and water barriers.
Which of these is not a way that reproductive isolation occure?
extinction of one speciesextinctionof one speciesExtinction of one species
What agar is the best for staphylococcus aureus?
Mannitol salt agar is one of the best agar fro isolation of Staphylococcus aureus
What is Mechanical Isolation?
There are two types: prezygotic and postzygotic. Prezygotic barriers prevent mating from even happening. If mating does occur, postzygotic barriers reduce the chances that an offspring will survive before being born. One prezygotic reproductive barrier is mechanical isolation.
What is thought to be essential for the formation of distinct species rather than a continnum form one from of life to another?
Reproductive isolating mechanisms are either prezygotic or postzygotic. These mechanisms ensure that species remain distinct in nature.ChaCha!answer
Which one of the following is an example of a postzygotic reproductive barrier A Hybid sterility B habitat isolation C Gamete isolation?
Hybid sterility would be a barrier to postzygotic reproduction. This means that the hybid is sterile. Hybid breakdown and inviability are also barriers.
Is ecological isolation a prezygotic isolating mechanism?
Sure is. How can one mate if an ecological barrier is erected between two biological species? Even something as simple as the time of day can be a barrier to mating.
What can keep two populations from interbreeding?
Many things. Just physical differences, a mouse is not going to breed with an elephant. Behavioral difference, such as mating dances, calls and the like. Temporal differences, such as one organism is diurnal and the other is nocturnal, or seasonal differences. These are called prezygotic barriers to reproduction. Postzygotic barriers can be as simple as a sterile match, such as horses and donkeys. Then there is just physical barriers, such as mountains and water barriers.
What are five reproductive barriers?
Five reproductive barriers are habitat isolation, temporal isolation, gametic isolation, hybrid breakdown, and reduced hybrid fertility. Habitat isolation, temporal isolation, and gametic isolation are examples of prezygotic reproductive barriers, meaning that they impede mating or hinder fertilization if mating does occur. Habitat isolation: Even if two species live in the same area, if they live in different habitats (ex: land vs. water), then they may rarely encounter each other and thus not be able to reproduce together. Temporal isolation: If a species breeds at different times (different days, seasons, years, etc), then they will not be able to mix their gametes. Gametic isolation: Gametic isolation occurs when the one species' sperm cannot fertilize another species' eggs. This isolation can be produced in a variety of ways such as the sperm's inability to survive the reproductive tract in the other species' females and biochemical mechanisms that prevent the sperm from penetrating the other species' eggs. Hybrid breakdown and reduced hybrid fertility are examples of postzygotic barriers since they prevent a hybrid zygote from developing into a viable, fertile adult. In hybrid breakdown, the first-generation of hybrids are fertile. However, when they reproduce (either by mating with one another or with one of their parent species), the next generation's offspring are feeble and sterile. In reduced hybrid fertility, the hybrids are sterile such as that of a cross between a donkey and a horse-a mule. This can happen if the two parent species have chromosomes with different structures because meiosis will fail to produce normal gametes in the hybrids. As a result, when the hybrids mate with either of their parental species, they cannot produce offspring. Thus, genes cannot freely flow between the species as the hybrids are infertile and cannot reproduce.
What is the advantage of opto-isolation?
An opto isolator is an electronic device that prevents high voltages from components in one side of a circuit from damaging or interfering with components on the other side of the same circuit.
What does a dance isolation mean?
isolation means when one part of your body does its own movement
What is an example of a reproductive barrier that may separate two similar species?
There are two general categories of reproductive isolating mechanisms: prezygotic, or those that take effect before fertilization, and postzygotic, those that take effect afterward. Prezygotic RIMs prevent the formation of hybrids between members of different populations through ecological, temporal, ethological (behavioral), mechanical, and gametic isolation.
What does isolation of the variable mean?
isolation of the variable means to get the variable on one side of the equation and the integers on the other side
What is one of the main themes of Bartleby the Scrivener empathy Wall Street isolation immigration?
One of the main themes of "Bartleby the Scrivener" is isolation. The story explores the consequences of social isolation and examines how it affects both the individual and those around them.
What is the advantage of using isolation transformer in a 220 volt 2wire AC system before load?
The isolation transformer provides a electrical mean to separate the source and load. Also, The isolation transformer will protect against surges and spikes as the primary winding due to it's magnetic property will impose more resistance (reactance) to higher frequencies such as spikes and such. where Xl is the impedance (resistance) of the primary winding. In this equation, one can see that higher frequencies increast the impedance of the coil proportionally to the rate of frequency.
