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What is called when the homologous chromosomes in an individual have the same allele for a certain gene?
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∙ 12y ago
Homozygous
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∙ 12y ago
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What is a pair of similar chromosomes with the same genes in the same locations?
Homologous pairs of chromosomes carry the same genes. These chromosomes are found in the same loci and contain the same centromere position.
Is homologous recombination a type of mutation?
No. A mutation can change an allele into any other allele. Homologous recombination can only change an allele to the allele of the homologous chromosome.
What are the differences between homologous chromosomes and chromosomes?
Homologous chromosomes are a set of chromosome pairs, one set maternal and the other paternal, that pair up during meiosis, the production of reproductive cells. The pairs have the same genes in the same locations, though once spread out the different pairs segregate out. the biggest way that these chromosomes change up is by exchanging lengths of the material.
What is an individual called that has two different alleles for a trait?
Someone who possesses both a dominant and a recessive form of a gene. So if mum has blue eyes (say it's recessive and expressed as "bb") and dad has brown eyes (say it's dominant and he's homozygous dominant: BB), then all of their children would have heterozygous brown eyes (Bb).
What is a fact for homozygous?
an individual containing 2 copies of the same allele for a particular trait located at similar positions on paired chromosomes
What is a variation of a gene that occurs at the same place on homologous chromosomes?
An allele.
What is a pair of similar chromosomes with the same genes in the same locations?
Homologous pairs of chromosomes carry the same genes. These chromosomes are found in the same loci and contain the same centromere position.
Describes the allele that is fully expressed when carried by only one of a pair of homologous chromosomes?
ecodominance
Traits are determined by pairs of genes called?
The two chromosomes (two "X" shapes) that are in a pair are generally called "homologous chromosomes". A pair of "chromatids" make up the two arms of a single chromosome.
Is homologous recombination a type of mutation?
No. A mutation can change an allele into any other allele. Homologous recombination can only change an allele to the allele of the homologous chromosome.
How are the terms genes locus and allele?
1. A gene is a piece of DNA that provides a set of instructions to a cell to make a certain protein, a locus is a specific position on a pair of homologous chromosomes, and a allele is any of the alternative forms of a gene that may occur at a specific locus.
What are pairs of the same chromosomes called?
A pair of chromosomes is called a "chromosome pair."Generally, the two chromosomes in a pair are "homologous chromosomes."An individual form of a gene is called an "allele." (For example: if someone has genotype "Aa", they have two different alleles, "A" and "a")
How are the terms genes locus and allele related?
1. A gene is a piece of DNA that provides a set of instructions to a cell to make a certain protein, a locus is a specific position on a pair of homologous chromosomes, and a allele is any of the alternative forms of a gene that may occur at a specific locus.
What are gene pairs called?
Allele
Chromosomes that contain genes that will determine the sex of an individual are called?
XX=female XY=male the male's second allele determines the sex (gender) of the offspring. If it is a Y, congratulations you're having a boy. If it is an X, you're having a girl. The sex linked genes are always carried along the X chromosome. The female's chromosome is always XX.
What are some examples of allele's?
Multiple alleles means that for a specific locus on a chromosome there can be 3 or more forms of that gene (allele). Only one allele can be inherited because they are found on homologous chromosomes. Height is not a multiple allele because it is associated with many genes on several chromosomes (plus environmental factors) so this would be polygenic inheritance. Multiple allele trait is the ABO group. The allele for A B or O (3 alleles ) is found on the same locus, therefore only one of them could be inherited EXAMPLE: DNA
Do homologous chromosomes always have identical alleles?
no they don't necessarily have to have the same alleles but they have the same genes. Homozygous chromosomes would have the same allele for a particular gene and heterozygous chromosomes would have different alleles for a particular gene.
