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When can you accurately determine a person's genotype from their phenotype?
Yes you can accurately determine an organisms genotype by observing it's phenotype, however some phenotypic traits resulting from homozygous or heterozygous combinations of alleles, may make the prediction impossible.
How does genotype affect phenotypes?
They are related to each other because...Genes and alleles are the traits inside an object, when using a punnet square, we take the genotype out of that object to make experiments.
In a heterozygous genotype the alleles always shows in the phenotype.?
In a heterozygous genotype, where an individual possesses two different alleles for a particular gene, the phenotype can be influenced by the dominance relationship between the alleles. Typically, the dominant allele will mask the expression of the recessive allele, resulting in the phenotype reflecting only the dominant trait. However, in some cases, such as incomplete dominance or codominance, both alleles can contribute to the phenotype. Therefore, it is not accurate to say that both alleles always show in the phenotype.
What is the origin of nondisjunction for an XXX genotype that produces a phenotype of a nearly normal female?
Nondisjunction in an XXX genotype can occur during cell division, leading to an extra X chromosome being present. In this case, the individual will have three X chromosomes instead of the usual two, resulting in a phenotype of a nearly normal female with some potential for developmental and reproductive issues.
Do organisms randomly mate with organisms that have a different phenotype or genotype?
Mating in organisms can depend on various factors, such as mate choice, availability, and behavior. While some organisms may mate randomly, others exhibit specific preferences related to phenotype, genotype, or other characteristics that can influence the selection of a mate. Overall, mating behaviors can be influenced by a combination of genetic, environmental, and behavioral factors.
When can you accurately determine a person's genotype from their phenotype?
Yes you can accurately determine an organisms genotype by observing it's phenotype, however some phenotypic traits resulting from homozygous or heterozygous combinations of alleles, may make the prediction impossible.
How does genotype affect phenotypes?
They are related to each other because...Genes and alleles are the traits inside an object, when using a punnet square, we take the genotype out of that object to make experiments.
What we call the observable expression of genes present in an organism?
The observable expression of genes present in an organism is referred to as the phenotype. This includes both physical traits, such as eye color or height, as well as behavioral characteristics. Phenotypes result from the interaction between an organism's genetic makeup and its environment.
In a heterozygous genotype the alleles always shows in the phenotype.?
In a heterozygous genotype, where an individual possesses two different alleles for a particular gene, the phenotype can be influenced by the dominance relationship between the alleles. Typically, the dominant allele will mask the expression of the recessive allele, resulting in the phenotype reflecting only the dominant trait. However, in some cases, such as incomplete dominance or codominance, both alleles can contribute to the phenotype. Therefore, it is not accurate to say that both alleles always show in the phenotype.
Why natural selection acts on the phenotype rather than genotype?
natural selection is a passive prosess . the mechanism of some individuals to be selected more than others is because they fit their environment more. and phenotype shows the fitness .
Can 2 organisms have different genotypes but the same phenotype?
No. It is possible for the reverse to be true, two organisms can have the same phenotype but a different genotype. This is because the phenotype is what you will see on the outside whereas the genotype is the combination of alleles and since this determines the phenotype, two organisms with the same genotype will have the same phenotype. So, basically, no. Actually 2 organisms can certainly have different phenotypes with the same genotype--this refers to the concept of penetrance. Some people can have the gene for a condition but never show symptoms. An excellent example of this is the disease neurofibromatosis. This disease has very variable penetrance in which a child of an affected parent may show no signs of the disease, but then have a child with a severe form.
Can two organisms have different genotypes but the same phenotype?
One way is if an allele for the gene in question is dominant. Homozygotes for the dominant allele and heterozygotes will both have the same phenotype.Organisms have the same phenotype, or physical characteristics. They do not, however, have the same genotype, or genetic makeup. If T represent tall, and t represnts short then the organism will have the genotypes TT and Tt. If you make a Punnett square you will have the same phenotype but different genotypes. Unless some weird mutation occurs....
Can you determine a persons genotype based on phenotype?
In some cases but not others. Certain alleles can be dominant, which means that they will dictate the phenotype should there be a clash of alleles in the genotype. Other alleles can be recessive, which means you'd need both of these alleles in these genotype in order for it to dictate the phenotype. This means that if a person's phenotype represents a dominant trait, we cannot be certain what their genotype is. If, however, it represents a recessive trait, we know that their genotype must be the recessive allele twice.
How is it possible that you would know your phenotype and not your genotype?
It is possible to know your phenotype, which is the observable physical traits or characteristics, without knowing your genotype, which is the genetic makeup that determines those traits. This can happen because some traits are influenced by environmental factors or multiple genes, making it difficult to predict the genotype based on phenotype alone. Additionally, genetic testing may be required to determine the specific genes responsible for a particular trait.
How can a genotype change a phenotype?
no not always due to some phenotypes having more than one gene sequence that affects it, eg; the base sequence for a certain enzyme's synthesis could be TTT but by substituting a T with a C to make TTC in mutation could still be a code for the same enzyme...
What best describes the factors that affect a phenotype?
The genotype and the environment both affect a phenotype.
What is the way an organism looks?
The way an organism looks is determined by its genetic makeup, which influences physical characteristics such as size, shape, color, and markings. Environmental factors may also play a role in determining an organism's appearance.
