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Giant clams release sperm and eggs into open water; gametes recognize one another by molecular markers.
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Is a congenital disorder the same as a gametic disorder?
No. A gametic disorder is one that results from an absent or defective gene. A congenital disorder is caused by incidents at birth such as starvation of oxygen after an umbilical cord is wrapped around the newborn's neck. This can cause defects such as Cerebral Palsy. A few examples of a gametic disorder are cystic fibrosis and hemophilia.
How are genetic mutations passed from parent to offspring?
In the gametes.
What kind of organisms exhibit gametic meiosis?
Organisms that reproduce sexually generally exhibit gametic meiosis. Organisms that reproduce through gametic meiosis are typically humans or even animals.
What are three ways isolation occur?
1. When new species form.2. When a group is separated from the rest of its species.3. When members of the isolated group can no longer mate with the rest of species.
What is gametic incompatibility?
Gametic incompatibility is the inability for a sperm to penetrate and fertilise the egg. For example, in abalones, the sperm carries a lysin protein that dissolves a hole in the egg's envelope, but only in eggs from the same species of abalone (D.J. Futuyma, Evolutionary Biology, 1998)
What are examples of coercive manipulation?
Some examples of activities that are considered coercive are harassment, imprisonment, torture, extortion, or threats of physical harm.Torture, isolation and threats.torture, isolation, threats
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.
Is a congenital disorder the same as a gametic disorder?
No. A gametic disorder is one that results from an absent or defective gene. A congenital disorder is caused by incidents at birth such as starvation of oxygen after an umbilical cord is wrapped around the newborn's neck. This can cause defects such as Cerebral Palsy. A few examples of a gametic disorder are cystic fibrosis and hemophilia.
what are some non examples of socialism?
Slugs and honesty are NOT social systems.
How are genetic mutations passed from parent to offspring?
In the gametes.
What kind of organisms exhibit gametic meiosis?
Organisms that reproduce sexually generally exhibit gametic meiosis. Organisms that reproduce through gametic meiosis are typically humans or even animals.
What type of cycle do humans have'?
gametic
What is a strict isolation?
Strict isolation is when a person is highly contagious and need to be kept in isolation from everyone. This is to help protect others from acquiring the virus, disease, etc. Until the Doctors determine what it may be and/or the patient recovers completely.
What type of life cycle exists in which the haploid form is always unicellular as humans?
The gametic life cycle exists in which the haploid form is always unicellular as in humans.
What patient requires contact isolation?
Contact isolation is used for patient's who have or have had an illness that is spreadable by contact with the person or items that the patient may have touched. Examples of contact isolation conditions are patient's with active c-diff, MRSA, VRE, etc.
What are two examples of species that evolved due to geographic isolation?
Galapagos finches (Darwin's finches)
How did Japan's geography contribute to its isolation?
The mountains of Japan and the location of Japan helped lead to some isolation.
