How could two individuals with the same genotype have a different phenotype?

Mandira P. Same phenotype but different genotype is possible due to presence of dominant allele. A dominant allele , when present in genotype, always expresses itself: both in double dose and in single dose.

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How can one genotype produce different phenotypes?

Genotype generally remains constant from one environment to another, although occasional spontaneous mutations may occur which cause it to change. However, when the same genotype is subjected to different environments, it can produce a wide range of phenotypes.

Can the same genotype cause two different phenotypes?

In most cases in which a particular genotype is inherited, it is not fully known why the same allele can cause subtly different or profoundly different phenotypes. In some cases, however, there is genetic evidence that modifier genes influence phenotypic variation.

What factors could cause individuals with the same genotype to express different phenotypes?

Dominance relationships between alleles for a given trait can impact phenotypic ratios, but interactions between different genes can also impact phenotype. Such traits that result from the interaction among multiple genes and their environment are called complex traits.

What is the relationship between an individual’s genotype and phenotype and how can genotypes shape and interact with the environment?

The genotype of an organism is defined as the sum of all its genes. The phenotype of an organism is the observable physical or biochemical characteristics of an organism, determined by both genetic make-up and environmental influences.

Is it possible that same genotype has different phenotype?

Different genotypes can produce the same phenotype. Different genotypes can produce the same phenotype.

Do twins have the same genotype?

Identical twins share the same genotype, since their genomes are identical; but they never have the same phenotype, although their phenotypes may be very similar.

Do genotype and phenotype always match?

The sum of an organism’s observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism’s parents, the phenotype is not. Whilst a phenotype is influenced the genotype, genotype does not equal phenotype.

Why do humans have two copies of each chromosome?

Sometimes whole chromosomes stick to other chromosomes. At some point in the last 6-8 million years, two of our chromosomes fused together to make our chromosome 2. We know this because our chromosome 2 is really just two chimpanzee chromosomes fused together.

How can identical twins have different phenotypes?

Identical or monozygotic twins occur when a single egg is fertilised to form 1 zygote that divides into 2 separate embryos. As a result, identical twins share identical DNA but may show differences in their phenotype due to environmental factors.

What are the differences between genotype and phenotype with examples?

Genotype Phenotype
It is affected by genes. It is affected by genotype and environmental conditions.
For eg., Blood group, eye colour, height, genetic diseases. For eg., Weight, physique, beak of birds

What are the similarities between genotype and phenotype?

Genotype Phenotype
Inheritance Partly inherited by offspring, as one of the two alleles is passed on during reproduction. Cannot be inherited.
Contains All the hereditary information of an individual, even if those genes are not expressed. Expressed genes only.

What is the relationship between genotype and phenotype quizlet?

What is the relationships between genotype & phenotype? Genotype refers to the alleles you possess for a particular gene or set of genes. Phenotype is the physical trait itself, which may be influenced by genotype and environmental factors.

How does the genotype relate to the phenotype?

The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. An organism’s phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.

Is it possible for two persons to have exactly the same genotype?

Uniqueness of Genotype

The true number of possible combinations is far greater still since the process that gives rise to egg and sperm cells can exchange parts of chromosomes through a process called recombination. Identical twins, however, share the exact same genotype, which is what makes them identical.

Do identical twins have the same genotype and phenotype?

Abstract. Human monozygotic twins and other genetically identical organisms are almost always strikingly similar in appearance, yet they are often discordant for important phenotypes including complex diseases.

What is the difference between genotype and phenotype how do these two terms relate to the terms allele homozygous heterozygous dominant recessive?

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 would different peoples chromosomes compare?

How do you think different people’s chromosomes would compare? Most humans have 46 chromosomes of approximately the same size and shape. The only major difference between different people’s chromosomes can be found in the sex chromosomes. Males have an X and Y chromosome.

How does genotype determine phenotype quizlet?

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.

How do the two members of a pair of homologous chromosomes differ from each other?

The two members of a homologous chromosome differ from each other because they have different versions of the same gene, called alleles.

How could two members of a non homologous pair of chromosomes differ from each other?

The main difference between homologous and non-homologous chromosomes is that homologous chromosomes consist of alleles of the same type of genes in the same loci whereas non-homologous chromosomes consist of alleles of different types of genes.

How does genotype differ from phenotype quizlet?

What is the difference between genotype and phenotype? The phenotype is an organism’s physical appearance, and the genotype is the genetic makeup.

Which statement best describes the relationship between genotype and phenotype?

The genotype of an organism describes the specific alleles for a particular gene, and the phenotype describes the appearance of the organism associated with the genotype.

Why is the connection between phenotype and genotype not simple?

Mendel observed that a heterozygote offspring can show the same phenotype as the parent homozygote, so he concluded that there were some traits that dominated over other inherited traits. However, the relationship of genotype to phenotype is rarely as simple as the dominant and recessive patterns described by Mendel.

Can humans be genetically identical?

No two humans are genetically identical. Even monozygotic twins (who develop from one zygote) have infrequent genetic differences due to mutations occurring during development and gene copy-number variation.

Do siblings have the same genotype?

These variations in X and Y chromosomes mean that brothers and sisters can never have identical genotypes. However, brothers will have the same DNA on their Y chromosomes. However, they will not have the same genotype overall because they will still receive variations on the X chromosomes from their mother.

Can a person have 2 sets of DNA?

People that have two different sets of DNA are called human chimeras. It can happen when a woman is pregnant with fraternal twins and one embryo dies very early on. The other embryo can “absorb” its twin’s cells. It can also happen after a bone marrow transplant, and (in a smaller scale) during normal pregnancy.

Why do you have two sets of chromosomes where did the two sets come from?

Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their mother and half from their father.

Which chromosome do you think has more DNA explain?

The Y chromosome is one of the two sex chromosomes in humans (the other is the X chromosome). The sex chromosomes form one of the 23 pairs of human chromosomes in each cell. The Y chromosome spans more than 59 million building blocks of DNA (base pairs) and represents almost 2 percent of the total DNA in cells.

Why is Down syndrome so common?

The number of babies born in the United States each year affected with Down syndrome is the result of several factors, including the number of fetuses conceived that carry the third copy of chromosome 21 (older mothers are more likely to conceive Down syndrome-affected fetuses, and the childbearing population in the …

What is the genotype of an individual?

A genotype is an individual’s collection of genes. The term also can refer to the two alleles inherited for a particular gene. The genotype is expressed when the information encoded in the genes’ DNA is used to make protein and RNA molecules.

When genotype is similar then the organisms are produced as?

Question When two different genotype produce the same phenotype due to environmental difference, then each one is known as :-
Type of Answer Video & Image

How do the two members of a pair of homologous chromosomes have in common?

The two members of a homologous chromosome pair have in common is that one is derived from the mother and the other is derived from the father. The maternal and paternal chromosomes in the homologous pair have the same genes in the same locus, they possibly have different alleles.

What do the two members of a homologous chromosome pair have in common quizlet?

What do the two members of a homologous chromosome pair have in common? They have the same size and centromere position.

Why the homologous chromosomes are genetically different?

A pair of homologous chromosomes are genetically different because in a set of homologous chromosomes, one of the chromosome belongs to the male parent and the other come from the female parent. Therefore, one of a pair will contain paternal genes and the other will contain maternal genes.

What is the difference between homologous and non homologous chromosome?

Homologous chromosomes correspond to the chromosomes present on the same pair in contrast to non-homologous chromosomes where they are found on different pairs.

Which pair of chromosomes can contain two very different chromosomes and still be considered normal explain your answer?

4. Which pair of chromosomes can contain two very different chromosomes and still be considered normal? Explain your answer. Members of chromosome pair 23, the sex chromosomes, are very different in a normal male, including an X chromosome and a Y chromosome.

Are homologous pairs of chromosomes exact copies of each other?

Are homologous pairs of chromosomes exact copies of each other? Homologous chromosomes are similiar but not identical. Each carries the same genes in the same order,but the alleles for each trait may not be the same.

How does the genotype of a bacterium determine its phenotype?

How does the genotype of bacterium determine its phenotype? Genotype is encoded by gene in DNA, gene in DNA will be transcription into mRNA.

Which of the following is a possible abbreviation for a genotype *?

Genotype = genes present in an organism (usually abbreviated as two letters)
TT = homozygous = pure Tt = heterozygous = hybrid tt = homozygous = pure

What is the best way to determine the phenotype of the feathers of a bird?

What is the best way of determining the phenotype of a bird’s feathers? By looking at the feathers. Individual units called genes determine an organism’s traits. A gene is a segment of DNA located on the chromosomes, that carries hereditary instructions from parent to offspring.

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