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Why are most sex-linked traits found in the X chromosome?
Most sex-linked traits are found on the X chromosome because males have only one X chromosome, so any gene on the X chromosome will be expressed in males. In females, who have two X chromosomes, one X chromosome can compensate for any harmful gene on the other X chromosome.
What is the term for any permanent change in a gene of chromosome?
A mutation is the term for any permanent change in a gene or chromosome. Mutations can be caused by various factors, such as errors during DNA replication or exposure to certain environmental factors like radiation or chemicals.
What is allel?
An allele is a variant form of a gene that can produce different phenotypic effects. Alleles are found at the same position on homologous chromosomes and can be dominant or recessive. Individuals inherit two alleles for each gene, one from each parent.
Why can't a female inherit a gene found on the y chromosome?
Females do not have a Y chromosome, so they cannot inherit genes found on it. The Y chromosome is passed down from father to son, and females inherit two X chromosomes, one from each parent. Therefore, any gene found on the Y chromosome is not present in females.
How many alleles does a human have?
An allele is an alternative form of a gene (one member of a pair) that is located at a specific position on a specific chromosome. Different chromosomes contain different numbers of genes on them, and different organisms contain different numbers of chromosomes. But for any specific gene on a specific individual organism, it will have only two alleles for each gene: one from its mother and one from its father.
Any gene located on a sex chromosome is called?
The answer to your question is Hybrid.
A...is any change in a gene or chromosome?
mutation
Where exactly is adrenoleukodystrophy on the x chromosome?
The specific location of the mutation that causes X-ALD is on the ABCD1 gene on the X-chromosome. Please note that there isn't a specific mutation in the ABCD1 gene that causes X-ALD or can be related in any way to the different clinical presentations of the disease.
What is any permanent change in a gene or a chromosome change?
Mutation
Does an entire chromosome code for only one gene?
You have about 20,000 to 25,000 genes in 23 chromosomes in human cell. So approximately 1000 genes are there in any single chromosome. The gene will be too big in size, if you have one single gene in any single chromosome.
Why are most sex-linked traits found in the X chromosome?
Most sex-linked traits are found on the X chromosome because males have only one X chromosome, so any gene on the X chromosome will be expressed in males. In females, who have two X chromosomes, one X chromosome can compensate for any harmful gene on the other X chromosome.
Mutation is any change in a gene or chromosome?
mutations
What is the term for any permanent change in a gene of chromosome?
A mutation is the term for any permanent change in a gene or chromosome. Mutations can be caused by various factors, such as errors during DNA replication or exposure to certain environmental factors like radiation or chemicals.
Why can there only be only two forms of a gene in any cell?
Basically, because there are two sexes. One gene allele is on one chromosome from dad and the other allele is on the chromosome from mom. If more than two alleles for a trait, only two can be represented in the genome of the organism.
If a gene is located on the human X chromosome it is more likely that a male will express the trait that the gene codes for?
Yes, because males only have one X chromosome (inherited from their mother), any gene on that X chromosome will be expressed in males. In females, both X chromosomes are present and one may be silenced through a process called X inactivation, leading to more variability in gene expression.
What is a locus?
LociA locus (plural loci) is the position on a chromosome where a gene is found. A useful analogy would be the address - 'Gene for brown eyes' is the name, '23rd gene' is the house number, 'Chromosome 4' is the street. (these are not necessarily true for this gene)A link can be found below.
What is allel?
An allele is a variant form of a gene that can produce different phenotypic effects. Alleles are found at the same position on homologous chromosomes and can be dominant or recessive. Individuals inherit two alleles for each gene, one from each parent.
