What refers to chromosomes that carry alleles for the same genes?
Homologous chromosomes are chromosomes which contain the same genes in the same order along their chromosomal arms.
When two alleles are the same on both chromosomes?
For a given gene, if the two chromosomes contain the same allele, they, and the organism, are homozygous with respect to that gene. If the alleles are different, they, and the organism, are heterozygous with respect to that gene.
Do homologous chromosomes carry the same alleles for all traits?
Homologous chromosomes are similar but not identical. Each carries the same genes in the same order, but the alleles for each trait may not be the same.
Do the chromosomes carry genes for the same traits do they carry the same alleles for all traits?
alternate forms or varieties of a gene. The alleles for a trait occupy the same locus or position on homologous chromosomes and thus govern the same trait. However, because they are different, their action may result in different expressions of that trait.
What are the two alleles of this trait?
What are the two alleles of this trait? The two alleles of this trait are the P and F1 traits.
In what way do two alleles for the same trait differ?
If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.
Which of the following carry the same alleles in the same locations?
Sister chromatids are by and large identical (since they carry the same alleles, also called variants or versions, of genes) because they derive from one original chromosome.
Do alleles determine traits?
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. These DNA codings determine distinct traits that can be passed on from parents to offspring through sexual reproduction.
Which genotype of an organism is with the same alleles for a trait?
An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene.
Do homologous chromosomes carry the same alleles?
Homologous chromosomes have alleles on the same genes located in the same loci. Heterologous chromosomes have alleles on different genes. Gene exchanges may occur at synapse. Gene exchanges may occur at translocation.
When both alleles for a trait are the same?
Both alleles for a trait are the same in an individual. They can be homozygous dominant (YY), or homozygous recessive (yy). heterozygous; usually referring to the offspring of two true-breeding (homozygous) individuals differing in the traits of interest.
What is an allele a trait give examples of each?
Alleles are different forms of the same gene. An example of alleles for flower color in pea plants are the dominant purple allele, and the recessive white allele; for height they are the dominant tall allele and recessive short allele; for pea color, they are the dominant yellow allele and recessive green allele.
How are alleles on a chromosome related to each other?
Conversely, alleles that were close to each other on the chromosome were likely to be inherited together. The average number of crossovers between two alleles—that is, their recombination frequency —correlated with their genetic distance from each other, relative to the locations of other genes on that chromosome.
Can a person have both recessive and homozygous alleles?
Recessive alleles only show the traits if the person has 2 copies of the same alleles. This is considered being homozygous , having the same 2 copies of alleles. If a person has 2 copies of the blue eye allele (both recessive) then the person would have blue eyes.
How are two genes close together on the same chromosome?
The offspring have an equal chance of being the parental type (inheriting the same combination of traits as the parents) or a nonparental type (inheriting a different combination of traits than the parents). In (b), two genes are very close together on the same chromosome so that no crossing over occurs between them.
Can a person have both Brown and blue eye alleles?
If a person has one copy of the brown eye allele (dominant) and one copy of the blue eye allele (recessive) then that person is considered to be a of the blue eye allele, since they would have brown eyes but still have the blue eye trait that is not shown. Recessive alleles only show the traits if the person has 2 copies of the same alleles.