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What Does a particular trait result from the expression of a single gene?
Huntington's disease is a perfect example of a single gene trait. A mutation in this allele causes Huntington's disease in later life. A dominant trait. Widows peak us another. Any gene that controls the total expression of a trait is an allele defined as a single gene trait.
What are the dominate alleles?
Dominant allele disorders are single gene disorders which take effect in the heterozygous state.
What are dominant alleles?
Dominant alleles are genetic variants that are expressed when present in a single copy in an individual's genotype, masking the expression of a recessive allele. In a heterozygous individual (having two different alleles for a gene), the dominant allele will determine the phenotype. Dominant alleles are represented by a capital letter in genetic notation (e.g., A).
Which of the following is an example of an autosomal dominant disease A Huntington's disease and neurofibromatosis type 1 or B Alzheimer's Disease and Heart Disease?
A. Huntington's disease and neurofibromatosis type 1 are examples of autosomal dominant diseases. These conditions are caused by a single copy of a mutated gene on an autosome (non-sex chromosome) and can be passed down from one affected parent to their offspring with a 50% chance of inheritance.
Is leukemia a dominant or recessive gene?
It depends on the family but I assume that its a recessive gene.
What condition is caused by a dominant allele of a single gene?
Dominant Alleles with negative effects tend to die out rather quickly through natural selection. Some examples are polydactyl, Huntington's disease, and sialuria. There may be some others, but they are rare. Often they were found in aristocrat families.
What Does a particular trait result from the expression of a single gene?
Huntington's disease is a perfect example of a single gene trait. A mutation in this allele causes Huntington's disease in later life. A dominant trait. Widows peak us another. Any gene that controls the total expression of a trait is an allele defined as a single gene trait.
Which are some diseases caused by an autosomal dominant allele?
The following list (thanks to Wikipedia) are diseases caused by an autosomal dominant allele. Familial hypercholesterolemia Polycystic kidney disease Neurofibromatosis type I Hereditary sherocytosis Marfan syndrome Huntington's disease Hereditary nonpolyposis colorectal cancer Multiple exostoses
What is the probability that a particular allele will be in a gamete?
chromosome segregationIf the character is governed by a single allele and it is dominant, than its probability to be in the gamete is 75%.
This is caused by a dominant single gene defect and generally does not appear until the individual is 35-45 years of age?
Huntington's Disease.
What are the Dominic?
Dominant allele disorders are single gene disorders which take effect in the heterozygous state.
Under what condition is a single recessive allele expressed in a male?
A single recessive allele will be expressed in a male if he inherits that allele on his only X chromosome, as males have one X and one Y chromosome. This is because the presence of the recessive allele on the X chromosome has no dominant allele to mask its expression.
What are the dominate alleles?
Dominant allele disorders are single gene disorders which take effect in the heterozygous state.
What autosomal disorders in humans are controlled by dominant alleles?
Some autosomal disorders in humans that are controlled by dominant alleles include Huntington's disease, Marfan syndrome, and neurofibromatosis type 1. These disorders are expressed when an individual inherits a single copy of the mutated gene from one parent.
Is Huntington's Disease a gene mutation?
No, it's caused by a single point mutation of a gene.
What are dominant alleles?
Dominant alleles are genetic variants that are expressed when present in a single copy in an individual's genotype, masking the expression of a recessive allele. In a heterozygous individual (having two different alleles for a gene), the dominant allele will determine the phenotype. Dominant alleles are represented by a capital letter in genetic notation (e.g., A).
Which statement best describes a dominate allele?
okay well the dominant form of an allele, is YO MOM she is the answer to all your problems and yea te va pegar con la mexican chancla
