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For a gene with its locus on the X chromosome what term do you use to describe a male that only has one copy of this gene?
Hemizygous - has 1/1 copy of the allele Heterozygous - has 1/2 copies of the alleleHomozygous - has 2/2 copies of the allele
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.
Which is most inclusive A. Allele B. Genotype?
Genotype is more inclusive than allele. Genotype refers to the genetic makeup of an organism, including all alleles present at a particular genetic locus. Allele is a specific form of a gene that can be present at a given locus within an organism's genome.
Two form of the same gene is called?
An indiviual letter in a punnett square representing a gene is called an allele. The two genes ( one from each parent ) together is a genotype. There isn't really two forms of a gene.
Why are traits controlled by recessive alleles on the X chromosomes are more common in males then in females?
In males, they only have one X chromosome, so if they inherit a recessive allele for a certain trait on their X chromosome, it will be expressed because there is no corresponding dominant allele on the Y chromosome to mask it. Females have two X chromosomes, so even if they inherit a recessive allele on one X chromosome, the dominant allele on the other X chromosome can mask its expression.
How are terms gene locus and allele related?
A gene locus refers to the specific position of a gene on a chromosome, while an allele refers to different versions of the same gene that can exist at a particular locus. In other words, a gene locus is the physical location of a gene on a chromosome, while an allele is a specific variant or form of that gene found at that locus.
What name is given to the specific location of a gene on a chromosome?
The specific location of a gene on a chromosome is called it's locus.
Location of an allele on a chromosome?
homologous
What do you call the physical location of a gene?
The specific term is gene locus. If the exact location is known then there is more specific terminology that refers to the chromosome number whether the locus is on the short (p) or long (q) arm of the chromosome and it's specific location based on band and sub-band location.
What is a monomorphic locus?
A monomorphic locus is a genetic locus where only one variant or allele is present within a population. This means that all individuals within that population carry the same allele at that specific genomic location.
A unit that determines that trait?
A genetic locus is the specific location on a chromosome where a particular gene is located. It serves as a unit that determines the expression of a specific trait due to the presence or absence of alleles at that locus.
What an allele?
An allele is an alternative form of a gene that is found at the same location on a chromosome.
What member of a pair or series of genes that occupies a specific position on a specific chromosome is referred to?
The position is called locus (plural: loci).
What are examples for the word allele?
The term allele is often used interchangeably with the word gene. Allele/gene is used for the variations seen at each gene locus for a trait on the homologous chromosome pair. For example: If there are three alleles for a trait only two of the alleles will be represented in the genotype of any one individual. The alleles for basic blood types A, B and O are examples. In general the term allele is not used interchangeably with gene in conjunction with the terms locus or loci..therefore Gene locus or gene loci but not allele locus or allele loci.
Where is a genes location along a chromosome?
A gene's location along a chromosome is determined by its specific position, known as a locus. The locus is described by the distance measured in base pairs from a reference point. Genes closer together on a chromosome are more likely to be inherited together, a phenomenon known as genetic linkage.
What is the meaning of the word locus?
The Latin word locus is equivalent to "place" in English language.
What is the difference between a factor and an allele?
A locus is a particular location or a marker on a chromosome. It can be a gene but really only needs to be an identifiable location on the chromosome. Alleles differ in that they refer to a particular sequence of DNA at a given locus. The distinction from loci is that multiple alleles can exist for the same locus. http://www.informatics.jax.org/silverbook/glossary.shtml
