can a person’s genotype be determined by their phenotype? why or why not? course hero

by Prof. Linwood Harber 7 min read

Answer and Explanation: A person's genotype is not determined by their phenotype. The genotype is the genetic makeup of an individual and is the basic instructions for how the cell should make proteins that make up our traits. The phenotype is the physical appearance or characteristics of the person.

Full Answer

Is a person's genotype determined by their phenotype?

Answer and Explanation: A person's genotype is not determined by their phenotype. The genotype is the genetic makeup of an individual and is the basic instructions for how the cell should make proteins that make up our traits. The phenotype is the physical appearance or characteristics of the person.

What are the characteristics of a phenotype?

The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.

How do biologists represent genotypes using letters?

Biologists commonly represent genotypes using letters. Consider a gene that codes for eye-color. Two alleles for this gene exist in a population, B, which encodes brown eyes, and b, which encodes blue eyes. Based on what you have learned about genetic notation, which allele is likely to be dominant to the other allele?

How do you know if a phenotype is homozygous or recessive?

If crossing the unknown dominant phenotype (PP or Pp genotype) individual with the recessive phenotype individual produces only dominant phenotypes (no recessive), then the unknown individual is homozygous dominant. Furthermore, can a person's genotype be determined by their phenotype?

Can a person's genotype be determined by their phenotype Why or why not?

No, a person's genotype cannot be determined solely by their phenotype as many genes in our genome do not get expressed.

Can you determine the genotype If you know the phenotype?

Today, scientists use the word "phenotype" to refer to what Mendel termed "external resemblance" and the word "genotype" to refer to an organism's "internal nature." Thus, to restate Mendel's musing in modern terms, we cannot infer an organism's genotype by simply observing its phenotype.

Can you determine the genotype of individual?

You may not always be able to determine the genotype of an individual based on a pedigree. Sometimes an individual can either be homozygous dominant or heterozygous for a trait. Often, we can use the relationships between an individual and their parents, siblings, and offspring to determine genotypes.

How do you determine a genotype?

0:292:064.3.2 Determine the genotypes and phenotypes of the offspring of a ...YouTubeStart of suggested clipEnd of suggested clipFrom the gametes you can produce a Punnett grid or sometimes known as a Punnett square to show theMoreFrom the gametes you can produce a Punnett grid or sometimes known as a Punnett square to show the probability of certain outcomes in terms of the genotypes of the offspring.

How can a person's genotype for a trait be determined from his or her phenotype for the trait?

Genotype is determined by the makeup of alleles, pairs of genes responsible for particular traits. An allele can be made up of two dominant genes, a dominant and a recessive gene, or two recessive genes. The combination of the two, and which one is dominant, determines what trait the allele will express.

What is the difference between your phenotype and your genotype How are the two related?

The genotype refers to the genetic material passed between generations, and the phenotype is observable characteristics or traits of an organism.

What determines a phenotype?

Phenotype refers to an individual's observable traits, such as height, eye color and blood type. A person's phenotype is determined by both their genomic makeup (genotype) and environmental factors.

How do you determine genotype and phenotype in a pedigree?

10:2013:48Genotypes and pedigrees - YouTubeYouTubeStart of suggested clipEnd of suggested clipI would expect half their children to be homozygous recessive. But they have four children and allMoreI would expect half their children to be homozygous recessive. But they have four children and all four of them happen to be have the dominant phenotype.

What is the importance of genotype and phenotype?

The predominant current-day meaning of genotype is some relevant part of the DNA passed to the organism by its parents. The phenotype is the physical and behavioral traits of the organism, for example, size and shape, metabolic activities, and patterns of movement.

How does genotype determine phenotype quizlet microbiology?

How does the genotype of an organism determine its phenotype? By specifying what kinds of RNA and which structural, enzymatic, and regulatory protein molecules are produced. -Polypeptides determine phenotype by acting as structural, enzymatic, and regulatory proteins.

What is phenotype and genotype with examples?

An organism's genotype is its specific combination of alleles for a given gene. So, for example, in the pea plants above, the possible genotypes for the flower-color gene were red-red, red-white, and white-white. The phenotype is the physical manifestation of an organism's allellic combination (genotype).

How do you find genotypic and phenotypic ratios?

To estimate the genotypic and phenotypic ratio, calculate the number of Punnett squares with each allele combination. So, in this example, one Punnett square for both RR and rr and two Punnett square boxes for Rr. Calculating Punnett square ratios as 1:2:1 will give the genotypic ratio.

How do biologists represent genotypes?

Biologists commonly represent genotypes using letters. Consider a gene that codes for eye-color. Two alleles for this gene exist in a population, B, which encodes brown eyes, and b, which encodes blue eyes.

What is the name of the disorder that affects skeletal growth and results in a greatly reduced stature?

Achondroplasia is an autosomal dominant disorder that affects skeletal growth and results in a greatly reduced stature. The presence of the achondroplasia allele causes a condition sometimes referred to as "dwarfism" (although it is important to note that it is not the only cause of dwarfism; many other genes and biological factors can cause ...

Can hydrangeas be heterozygous?

No, because it could be either homozygous dominant or heterozygous. You are responsible for landscaping a very large urban park. You choose a popular flowering garden plant, the hydrangea, to plant throughout the park. The nursery you purchased the plants from said that the flowers should be pink.