If a pea plant has the two alleles yy what is its genotype

29.01.2021 By Zulurisar

The difference: Phenotype is the expressed dominant allele "Y" for green only, and not "y" for yellow. In a more narrow sense, the term can be used to refer to the alleles, or variant forms of a gene, that are carried by an organism. Humans are diploid organisms, which means that they have two alleles at each genetic position, or locus, with one allele inherited from each parent.

Heterozygous Traits

Each pair of alleles represents the genotype of a specific gene. For example, in sweet pea plants, the gene for flower color has two alleles. One allele codes for purple flowers and is represented by the uppercase letter F, whereas the second codes for white flowers and is represented by the lowercase letter f. A varied population of sweet pea plants could therefore feature three possible genotypes at this locus: FF, Ff, or ff. Each plant's genotype contributes to its phenotype, which, in this case, is the outward appearance of its flowers.

A particular genotype is described as homozygous if it features two identical alleles and as heterozygous if the two alleles differ.

if a pea plant has the two alleles yy what is its genotype

The process of determining a genotype is called genotyping. The phenotype is what you see, the genotype is the alleles. There are two kinds of alleles: dominant and recessive. Take, for example, the colour of the pea casing.

if a pea plant has the two alleles yy what is its genotype

The dominant colour is yellow, so we'll represent it by Y, and recessive is g. If the plant is yellow, its phenotype is yellow.

if a pea plant has the two alleles yy what is its genotype

However, its genotype could be YY, or Yg - since the yellow is dominant, if the Y allele is present, the phenotype is automatically yellow. However, if the plant is green, its genotype must be gg, as the green colour is recessive and both alleles must be g in order to appear green.

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The same applies to whether the peas are wrinkly or not wrinkly being recessivewhether the flowers are white or violet, how tall the plant is, and other characteristics. Please help? Answer Save. Phenotype: Observable characteristics of an organism, i. Genotype: A set of genes of an organism, i. Further reading: Genotype "In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes.

Still have questions? Get your answers by asking now.What would be the phenotype of a pea plant that is heterozygous for the alleles? All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Hottest Questions. Previously Viewed. Unanswered Questions. Fruits and Vegetables. Wiki User Related Questions Asked in Genetics What is the phenotype of a heterozygous? Asked in Biology, Genetics What is the phenotype of a heterozygous plant?

You would have to figure out what the traits of the plant are - i. The phenotype refers to the outward appearance: blue flowers, pink flowers, long stems, short stems, etc. It's how it looks. Heterozygous means that it has two different alleles for one trait.

Asked in Care of Birds, Biology, Birds, Genetics In pea plants the peas produced may be green or yellow with the yellow being the dominant form of the allele what would be the phenotypw of a pea plant that is heterozygous for the alleles?

If yellow is the dominant allele, then the heterozygous plants would have yellow peas. Heterozygous individuals have a dominant phenotype. Asked in Care of Rabbits, Genetics, Genetic Engineering The phenotype of a black rabbit whose complement of alleles for the trait is Bb would be?

The genotype, Bb, makes this rabbit heterozygous. Asked in Biology, Genetics What is meant by genotype and phenotype? The genotype is meant the by the type of alleles that are present for the genes ie.

Genetic Makeup The phenotype is the visible characteristic for the trait. For example: When a tall and a short pea plant are cross fertilized, the phenotype of the resultant plant would be tall, but the actual genotype would be heterozygous tall, meaning that the short is still in the genes, just not exhibited.

How Mendel's pea plants helped us understand genetics - Hortensia Jiménez Díaz

Hope this helps. Asked in Genetics How would you describe the alleles in a heterozygous genotype? A heterozygous genotype includes two different alleles. Asked in Genetics A particular plant is said to be homozygous for seed color what does this mean? Now the way to find out whether it is homozygous dominant or homozygous recessive is to do a cross with a homozygous recessive plant and look at the seed colour the phenotype.

But if the original plant is homozygous recessive the offspring will show the recessive phenotype. Asked in Genetics How can tow plants that have different genotypes have the same phenotype? One plant would be homozygous dominant and the other would be heterozygous.

A hybrid is heterozygous, and a pea plant that is a hybrid for stem length would have the heterozygous genotype Tt.

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Asked in Science How would you write an allele that is heterozygous?Played 0 times. Live Game Live. Finish Editing. This quiz is incomplete! To play this quiz, please finish editing it. Delete Quiz. Question 1. Purple flowers are dominant to white flowers. What would the phenotype for a flower with genotype pp be? What would the phenotype for a flower with genotype Pp be?

What would the phenotype for a flower with genotype PP be? Weak and can be overpowered. Strong and cannot be overpowered. A chart that shows all the possible combinations of alleles from parents. A unit that determines a trait. If you crossed a PP purple with a pp whitewhat would the phenotypes be? Who is the Father of Genetics?

The letters representing the phenotype is called. An organism that has two different alleles for a trait hybrid. An organism that has two identical alleles for a trait purebred. Which of the following pairs is homozygous dominant? Which of the following is a Heterozygous Genotype? Which of the following is a Homozygous Genotype?

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Select ALL that are. What do we use to show recessive alleles.All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.

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How is the phenotype of a pea plant different from its genotype?

Unanswered Questions. If a pea plant has the two alleles yy. Wiki User Related Questions Asked in Genetics, Biology How can you tell whether an allele is dominant or recessive? The dominant allele is the one that corresponds to the phenotype shown while the recessive allele is the one that corresponds to the alternate phenotype not shown by the organism. In pea plants from Gregor Mendel's famous experimentsthe "tall" allele was dominant over the "short" allele, so a pea plant with one or two "tall" alleles was a tall pea plant and a pea plant with two "short" alleles was a short pea plant.

Asked in Genetics, Gregor Mendel What happens in Mendel's experiments when a pea plant received two different alleles for the same trait? Unless the alleles are codominate which Mendel did not have in pea plantsone will be dominate and will be what you see phenotype and one will be recessive and you will not see it. Asked in Science, Biology In pea plants individuals that are Pp for the alleles that code for flower color will have purple flowers. What is the phenotype? In pea plants, individuals that are Pp for the alleles that code for flower color will have purple flowers.

Asked in Biology, Genetics What is the phenotype of a flower in a pea plant that is homozygous recessive? It will have the recessive phenotype. Asked in Biology, Genetics What is the phenotype of a flower in a pea plant that is homozygous dominant? It will have the dominant phenotype. Asked in Botany or Plant Biology, Genetics What can a yellow pea plant and a green pea plant produce? Asked in Genetics How does a recessive or dominant allele effect hereditary influence?

The traits inherited depends upon the alleles that have been passed on from the father and mother.If a homozygous recessive pea plant is crossed with a heterozygous pea plant, what ratio of dominant to recessive phenotypes should occur in the offspring? Do a punnett square with Tt x tt. The phenotype of the two Tt would be tall, and the phenotype of the two tt would be short.

Hybrids are organisms that result from cross-breeding, and usually have different copies of the same genes. Dominant factors are genes that show up even if only one copy is that gene. Recessive factors are ones that show up only if all copies are the same.

However, some genes do cause mixing, which would cause medium height. If you haven't discussed mixing which is likelythen the answer is A. It is used to figure out how the different genes can combine in the offspring. Mitosis is when one cell divides and becomes two; both are identical genetically. Meiosis is when one cell divides and becomes four cells that only have half of the chromosomes of the original cell; it is involved in sexual reproduction.

Homozygous means having the same copy of a certain gene. Heterozygous means having two different copies of that gene.

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A hybrid usually refers to the result of a cross of different animals, and is more similar to heterozygous. If you created a punnet square you would see that the cross of a homozygous recessive plant with a heterozygous plant will result in:. Answer Save. A If you created a punnet square you would see that the cross of a homozygous recessive plant with a heterozygous plant will result in: 2 Heterozygous plants 2 Homozygous recessive plants.

Still have questions? Get your answers by asking now.Does a pea plant with the genotype TT has the same phenotype as a pea plant with genotype tt?

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All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Hottest Questions. Previously Viewed. Unanswered Questions. Fruits and Vegetables. Wiki User No because T resembles a dominant trait and t resembles a recessive trait.

If it is TT, that means there are 2 dominant traits, and for TT there are 2 recessive traits. Related Questions Asked in Genetics Are phenotype and genotype traits the same? Phenotype and genotype traits don't always have to be the same.

Phenotype is the physical characteristics and genotype is the genetic makeup. Asked in Genetics Pea plant shows a recessive phenotype? Asked in Genetics What is the phenotype for a pea plant with the genotype TTyy? Asked in Biology, Genetics, The Difference Between What is the difference between phenotype and a genotype an What is a example of each?

How is the phenotype of a pea plant different from its genotype?

A phenotype is a physical characteristic of an organism, such as a tall pea plant. An organism's genotype is the specific gene combination that makes up a characteristic using Punnett Square. For example, a tall pea plant might have a genotype of TT or Tt, whereas a small pea plant may have a genotype of tt. Note: In this case "T" is dominant and "t" is recessive.Two alleles for a given gene in a diploid organism are expressed and interact to produce physical characteristics.

The observable traits expressed by an organism are referred to as its phenotype. For example, the phenotypes that Mendel observed in his crosses between pea plants with differing traits are connected to the diploid genotypes of the plants in the P, F1, and F2 generations. We will use a second trait that Mendel investigated, seed color, as an example. Seed color is governed by a single gene with two alleles.

The yellow-seed allele is dominant and the green-seed allele is recessive. When true-breeding plants were cross-fertilized, in which one parent had yellow seeds and one had green seeds, all of the F1 hybrid offspring had yellow seeds.

That is, the hybrid offspring were phenotypically identical to the true-breeding parent with yellow seeds. However, we know that the allele donated by the parent with green seeds was not simply lost because it reappeared in some of the F2 offspring Figure 5. Therefore, the F1 plants must have been genotypically different from the parent with yellow seeds.

The P plants that Mendel used in his experiments were each homozygous for the trait he was studying. Diploid organisms that are homozygous for a gene have two identical alleles, one on each of their homologous chromosomes. The genotype is often written as YY or yyfor which each letter represents one of the two alleles in the genotype. The dominant allele is capitalized and the recessive allele is lower case. When P plants with contrasting traits were cross-fertilized, all of the offspring were heterozygous for the contrasting trait, meaning their genotype had different alleles for the gene being examined.

For example, the F1 yellow plants that received a Y allele from their yellow parent and a y allele from their green parent had the genotype Yy. Our discussion of homozygous and heterozygous organisms brings us to why the F1 heterozygous offspring were identical to one of the parents, rather than expressing both alleles.

In all seven peaplant characteristics, one of the two contrasting alleles was dominant, and the other was recessive. Mendel called the dominant allele the expressed unit factor; the recessive allele was referred to as the latent unit factor.

We now know that these so-called unit factors are actually genes on homologous chromosomes. For example, when crossing true-breeding violet-flowered plants with true-breeding white-flowered plants, all of the offspring were violet-flowered, even though they all had one allele for violet and one allele for white.

if a pea plant has the two alleles yy what is its genotype

Rather than both alleles contributing to a phenotype, the dominant allele will be expressed exclusively.