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DNA is composed of long strings of nucleic acid sequences, but not all of them code for proteins. The ones that do are called genes. Alleles are different versions of a certain gene. For example, the gene that codes for blood type has 3 different alleles, A, B, and O. The genes that code for hair and eye color also have many different alleles.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoA gene is a segment of DNA that codes for a functional product (i.e. a protein). An allele is an alternate version of a gene.
For example, in a gene that codes for fur colour in rabbits, the two alleles are B and b.
B and b are both versions of the same gene - but they may result in a different phenotype (physical trait).
Wiki User
∙ 13y agoGenes and alleles are related because alleles are inside a gene. Genes are made up by alleles. A gene is DNA. The allele is like piece of DNA inside a gene.
Wiki User
∙ 12y agogood thinking
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The condition in which genotypes have identical alleles?
homologous
What information does a Punnett square provide?
Possible alleles in the gametes of the parents
What genotype is produced by the phenotype B?
Genotypes are not created by phenotypes, they are the alleles/genes of the organism. Genotypes (in combination with environment) produce phenotypes. It would be expected that the genotypes Bb and BB would produce the phenotype B.
How does a punnett square show genotype and phenotype?
A Punnett square is a visual representation of the possible genotypes resulting from a genetic cross. By combining the alleles of two parents, it shows the potential genotypes of their offspring. From these genotypes, one can infer the corresponding phenotypes based on the inheritance patterns of the alleles involved.
Why do you have more genotypes than phenotypes?
The number of possible genotypes is typically higher than the number of observable phenotypes because multiple genotypes can result in the same phenotype due to genetic variations, interactions, and environmental factors. Different combinations of genotypes and environmental influences can lead to similar outward traits, resulting in fewer distinct phenotypes than genotypes.
How are the genotype and phenotype of parents related to the genotype and phenotypes of offsprings?
The parents can pass on only the alleles of their genotypes to their offspring. Therefore, the offspring genotypes and phenotypes are dependent solely upon the alleles inherited from the parents.
Which genotypes have dominant phenotypes?
The genotypes in which one or more alleles is dominant.
The condition in which genotypes have identical alleles?
homologous
What genotypes is heterozygous?
A heterozygous genotype, is the genetic makeup of different alleles.
What are multiple-allele traits?
Traits governed by multiple alleles are controlled by three or more alleles, rather than two. An example in humans is the ABO blood group system. There are three alleles in the ABO blood group system, IA, IB, IO. These three alleles can produce six genotypes, AA, AO, BB, BO, AB, OO. These genotypes can produce four different phenotypes, A (genotypes AA or AO), B (genotypes BB or BO), AB, (genotype AB) and O (genotype OO).
The frequencies of alleles and genotypes remain constant from generation to generation unless?
Unless there are factors such as mutation, genetic drift, gene flow, or natural selection that can cause changes in allele frequencies within a population. This concept is known as the Hardy-Weinberg equilibrium, which describes the conditions under which allele and genotype frequencies remain stable over time in a population.
What information does a Punnett square provide?
Possible alleles in the gametes of the parents
How are the genotypes of parents related to the genotypes and phenotypes of the offspring?
alleles are variations of genes
What genotype is produced by the phenotype B?
Genotypes are not created by phenotypes, they are the alleles/genes of the organism. Genotypes (in combination with environment) produce phenotypes. It would be expected that the genotypes Bb and BB would produce the phenotype B.
What do the letters inside the punnent square stand for?
The letters inside a Punnett square represent the alleles of the genetic traits being studied. Each letter signifies a different version of the gene that can be inherited from the parents.
What information must you know to determine the phenotypes of different genotypes for a gene with two alleles?
To determine the phenotypes of different genotypes for a gene with two alleles, you need to know the dominance relationship between the alleles (whether one is dominant over the other), the genotype of the individual (e.g., heterozygous or homozygous), and the specific phenotypic outcomes associated with each allele (e.g., color, shape, function). Additionally, knowledge of how the alleles interact (e.g., codominance, incomplete dominance) is important to predict the phenotypes.
Why do you have more genotypes than phenotypes?
The number of possible genotypes is typically higher than the number of observable phenotypes because multiple genotypes can result in the same phenotype due to genetic variations, interactions, and environmental factors. Different combinations of genotypes and environmental influences can lead to similar outward traits, resulting in fewer distinct phenotypes than genotypes.
