Answer:
X linked dominant disorders are caused when the genes on the X chromosomes gets mutated. X linked dominant disorders phenotype is observed in each generation and males experience more severe symptoms of disorder as compared to a female.
In X linked recessive disorder one copy of affected X gene is sufficient to cause the disease in males. In case of females both the X gene are required to be effected for causing disease.
Explanation:
X linked dominant disorders are caused when the genes on the X chromosomes gets mutated. X linked dominant disorders phenotype is observed in each generation and males experience more severe symptoms of disorder as compared to a female. This disorder is never transmitted to male child by the father or in other way we can say that there is no male to male transmission. For example Fragile X syndrome
In X linked recessive disorder one copy of affected X gene is sufficient to cause the disease in males. In case of females both the X gene are required to be effected for causing disease. Males are more affected by this disorder as compared to females. For example - hemophilia
. This disorder is never transmitted to male child by the father just like the X linked dominant disorder or in other way we can say that there is no male to male transmission.
The given question is incomplete. The complete question is:
Which statements describe transform boundaries? Select two options.
Rift valleys are formed.
Mountains are created.
Faults form in the lithosphere.
Plates move toward each other.
Plates slide in opposite directlồns.
Answer:
The correct options are that formation of faults takes place in the lithosphere and the sliding of the plates takes place in the opposite direction.
Explanation:
The transform boundaries signify towards the site where sliding of the plates takes place past each other, it is also called transform plate boundaries. In the process of the formation of the transform boundaries, neither the formation nor the destruction of the lithosphere takes place, however, in the process formation of thin rift valleys occurs.
The majority of the formation of the transform boundaries are witnessed on the floor of the sea. These boundaries possess the tendency of giving rise to earthquakes of high intensity that imparts a deleterious influence on the ecosystem. California's San Andrea is an illustration of transform boundaries.
Presbyopia is age-related farsightedness due to hardening of the lens of the eye that causes the eye to focus light behind rather than on the retina when looking at nearby/close objects.
Group of the same species that live together
Answer:
Fish and prawns = through gills
Frog = through lungs but also uses skin and lining of mouth for respiration
Amphibians,mammals and birds = through lungs
Tapeworms,earth worms and leeches = through body wall or skin
Amoeba and other unicellular animals = through plasma membrane
Explanation:
