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What does allelomorph mean?

What does allelomorph mean?



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Is there any difference between allele and allelomorph since most websites call them the same. If they are same then why two different term?


Allele, allelomorphs - the common word in both is "Allele" - When Multiple genes code for a contrasting or similar traits/ or multiple genes in the same locus on homologous chromosomes can be qualified as an allele.

Now let's look at second word "Morph" - Adjective MORPHOLOGICAL meaning that - relating to the form or structure of things. Now I'm going to mix this word MORPH with another word POLY which gives "Polymorphic" (Meaning Many Shapes/Forms) - Polymorphism is the ability of an object to take on many forms. This is the same behavior that we could see in an allele. Let me put this polymorphism more specific to our topic.

Gene-Polymorphism -

  • A gene is said to be polymorphic if more than one allele of a gene exists within a population.

  • In addition to having more than one allele at a specific locus, each allele must also occur in the population at a rate of at least 1% to generally be considered polymorphic. - Wiki definition

Now comparing the definition of allele with this second point of Gene Polymorphism, we get Allelomorphs - Meaning that a single Allele taking different forms/ multiple occurrences within a given population.

Here is an example for easier understanding,

Eye Color is a Trait,

Let us say that eye color is controlled by a single gene, for simplicity (this is generally not true in nature).

  • Blue Eye gene variant is an Allele,
  • Red Eye gene variant is an Allele,
  • Yellow Eye gene variant is an Allele,

Your eye color is then controlled by which of these alleles you have for the eye color gene.

Here eye color allele takes different forms. Thus making it polymorphic, Putting all these forms together we get Allelomorph(s) (plural), each individual one is as an allele/allelomorph (singular)


Allele

An allele ( UK: / ˈ æ l iː l / , / ə ˈ l iː l / US: / ə ˈ l iː l / modern formation from Greek ἄλλος állos, "other") [1] [2] [3] is one of two, or more, forms of a given gene variant. [4] For example, the ABO blood grouping is controlled by the ABO gene, which has six common alleles. Nearly every living human's phenotype for the ABO gene is some combination of just these six alleles. [5] [6] An allele is one of two, or more, versions of the same gene at the same place on a chromosome. It can also refer to different sequence variations for several-hundred base-pair or more region of the genome that codes for a protein. Alleles can come in different extremes of size. At the lowest possible size an allele can be a single nucleotide polymorphism (SNP). [7] At the higher end, it can be up to several thousand base-pairs long. [8] [9] Most alleles result in little or no observable change in the function of the protein the gene codes for.

However, sometimes, different alleles can result in different observable phenotypic traits, such as different pigmentation. A notable example of this is Gregor Mendel's discovery that the white and purple flower colors in pea plants were the result of "pure line" traits, that is a single gene with two alleles.

Nearly all multicellular organisms have two sets of chromosomes at some point in their life cycle that is, they are diploid. In this case, the chromosomes can be paired. Each chromosome in the pair contains the same genes in the same order, and place, along the length of the chromosome. For a given gene, if the two chromosomes contain the same allele, they, and the organism, are homozygous with respect to that gene. If the alleles are different, they, and the organism, are heterozygous with respect to that gene.


What is the definition of a recessive gene?

Read, more elaboration about it is given here. Simply so, what is a recessive allele simple definition?

n an allele that produces its characteristic phenotype only when its paired allele is identical. Synonyms: recessive Type of: allele, allelomorph. (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character.

One may also ask, what is the meaning of dominant and recessive trait? Dominant and recessive traits exist when a trait has two different forms at the gene level. The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.

In this way, what is an example of a recessive gene?

Examples of Recessive Traits For example, having a straight hairline is recessive, while having a widow's peak (a V-shaped hairline near the forehead) is dominant. Cleft chin, dimples, and freckles are similar examples individuals with recessive alleles for a cleft chin, dimples, or freckles do not have these traits.

Who has stronger genes mother or father?

Paternal genes have been found to be more dominant than the maternal ones. Genes from your father are more dominant than those inherited from your mother, new research has shown.


What is a gene?

The gene is the functional unit of inheritance. It consists of a DNA fragment (deoxyribonucleic acid) that contains the genetic information for the synthesis of a protein. Proteins are macromolecules that perform the main functions of a cell.

The word “gene” comes from the Greek root genos, meaning ‘race’ or ‘origin’. Gregor Mendel (1822-1884) was the first to describe genes as “inheritance packages.”

The set of genes of an individual is known as a genome and determines the genotype or DNA sequence of the genome. The phenotype is represented by the visible and measurable characteristics and features of the living being.

The position on the chromosome of a gene is called a locus. For example, the insulin gene (INS) is found on chromosome 11 of humans at locus 11p15.5, while the gene for melanocortin receptor 1 (MC1R), responsible for skin pigmentation, is found in locus 16q24.3.

Characteristics of the genes

  • It is composed of DNA.
  • They are transmitted by parental inheritance.
  • There are about 20,000 genes in humans.
  • They are transcribed in the form of messenger RNA.
  • They may undergo changes that produce a genetic mutation, giving rise to alleles.
  • In eukaryotes, genes have coding sequences (exons) and non-coding sequences (introns).

How a gene works

In order for the gene information to be expressed as a protein, there are sequences in the DNA called promoters, which are the site of transcription initiation. The enzyme responsible for “gene reading” is RNA polymerase, which forms messenger RNA from the genetic sequence. Messenger RNA is then translated into proteins in the ribosomes.

Basically, the genes that transmit the specific biological characteristics of each living being, from one generation to another, are stored in the genes.


Definition of Variation in Biology for Dummies

There’s very little in the method of helping a failing student beyond raising test scores due to the very way we take a look at the computer system. When you’re getting acquainted with statistics, it is tough to grasp everything straight away. Moreover, focusing on new sets of traits often results in assigning people to unique races, regardless of the simple fact they were lumped in the exact race before. If for any reason your order isn’t readily available to ship, you won’t be charged. So kind may be at a greater taxonomic level in some instances, lower in others. This is simply one over-simplified example to provide an idea about what sorts of forces can act on a population to create a directional shift.


The Fight Against Definition of Variation in Biology

For instance, when you travel to a specific location, as your speed increases, the time that it requires to arrive at that location decreases. You might have different rules based on the variations or might have heard them called something else, but this is the way I play and the names I know them by. If you just did 100 burpees and feel like you wish to hurl dial farther down the intensity a bit next moment. What is needed is that the three ought to be studied and learnt, and one has to be in a position to control the struggle in all 3 directions. They&rsquore placed an equal distance from one another on the line. For instance, starting with numerous queens or fewer pawns.

They&rsquore lost with the death of the person. The simple fix is to figure its square root and get a statistic referred to as standard deviation. A third person might answer the demand of circumstance but that&rsquos insufficient either. Other environmental influences like smoking can raise the risk of cancer and other disease similarly. This isn&rsquot always true.

You may probably thank this guy. When you&rsquore getting acquainted with statistics, it is tough to grasp everything straight away. Dogs don&rsquot interbreed with cats, however, because they&rsquore a different kind. I really like attempting to understand unique languages, it&rsquos only one more thing to make postcrossing interesting! So kind may be at a greater taxonomic level in some instances, lower in others. Simply take a peek at your loved ones.

However, this looks wrong. The variations utilize a vast range of unique metres and tempos. The specimens would be permitted to grow and they&rsquod be observed in adulthood. Formerly referred to as allelomorph.


The word allele is derived from the word allelomorph, which means that it can be shown in different ways. In the field of biology itself, the word allele is used to name each gene that is located in the same place where the homologous chromosomes are found. In other words, alleles are the different forms that a gene can take, each with its own sequences. When these genes manage to manifest, they determine some of the characteristics of the individual depending on their properties.

For example, skin color, eye color, blood type, etc. are manifested. When cell meiosis occurs, the chromosomes fight the field and during the confrontation, the allele will be the value that is given to the gene and it will depend on it if it manages to dominate or not the transmission of information. When we speak of the homozygous allele genes, we refer to the genetic composition of a specific characteristic of a diploid organism. Each of the homozygous alleles is inherited in a particular way from its progenitor, so that, when the alleles of that gene are equal, it will be homozygous. The heterozygous allele speaks to us of two different forms that have a particular gene, they are individuals that have pairs of different alleles that determine a characteristic.


How Osmosis Affects Cells

Osmosis affects plant and animal cells differently because plant and animal cells can tolerate different concentrations of water. In a hypotonic solution, an animal cell will fill with too much water and lyse, or burst open. However, plant cells need more water than animal cells, and will not burst in a hypotonic solution due to their thick cell walls hypotonic solutions are ideal for plant cells. The optimal condition for an animal cell is to be in an isotonic solution, with an equal amount of water and solutes both inside and outside. When a plant cell is in an isotonic solution, its cells are no longer turgid and full of water, and the leaves of the plant will droop. In a hypertonic solution, water will rush out of both animal and plant cells, and the cells will shrivel (in plants, this is called plasmolyzation). This is why slugs and snails shrivel and die when salt is sprinkled onto them water leaves their cells in order to balance the higher concentration of salt outside the cells.

This figure shows the effects of osmosis on red blood cells:


The Definition and Prevalence of Obesity and Metabolic Syndrome

Increase in prevalence of obesity has become a worldwide major health problem in adults, as well as among children and adolescents. Furthermore, total adiposity and truncal subcutaneous fat accumulation during adolescence are positively and independently associated with atherosclerosis at adult ages. Centrally accumulation of body fat is associated with insulin resistance, whereas distribution of body fat in a peripheral pattern is metabolically less important. Obesity is associated with a large decrease in life expectancy. The effect of extreme obesity on mortality is greater among younger than older adults. In this respect, obesity is also associated with increased risk of several cancer types. However, up to 30% of obese patients are metabolically healthy with insulin sensitivity similar to healthy normal weight individuals, lower visceral fat content, and lower intima media thickness of the carotid artery than the majority of metabolically "unhealthy" obese patients.Abdominal obesity is the most frequently observed component of metabolic syndrome. The metabolic syndrome clustering of abdominal obesity, dyslipidemia, hyperglycemia and hypertension, is a major public health challenge. The average prevalence of metabolic syndrome is 31%, and is associated with a two-fold increase in the risk of coronary heart disease, cerebrovascular disease, and a 1.5-fold increase in the risk of all-cause mortality.

Keywords: Body mass index Insulin resistance Metabolic syndrome Metabolically healthy obese Obesity-paradox Prevalence of obesity.


What does it mean I have a monoclonal B-cell lymphocytosis?: Recent insights and new challenges

Monoclonal B-cell lymphocytosis (MBL) is defined as a laboratory abnormality where small (<5 x 10(9)/L) clonal B-cell populations are detected in the peripheral blood of otherwise healthy subjects. According to the immunophenotype, MBL is labeled as chronic lymphocytic leukemia (CLL)-like (75% of cases), atypical CLL, and CD5-negative. Concentration of clonal B cells differentiates low- (LC) and high-count (HC)-MBL (< or ≥ 0.5 x 10(9)/L, respectively). Thanks to technical improvements, we are able to identify CLL-like clonal B-cell populations at increased frequency with age, but we are still far from understanding its relationship with clinically overt CLL. LC-MBL, requiring high-throughput screening technique to be identified in population studies, seems to be a bird of a different feather and several hints suggest that LC-MBL is related to aging and/or chronic antigenic stimulation. Immunogenetic, cytogenetic and genetic data support the notion that HC-MBL, usually identified in the clinical setting, is a premalignant condition and, based on biological parameters, it is frequently difficult to differentiate it from early stage CLL. The rapid improvement and widespread availability of cutting-edge technology, in particular next-generation sequencing (NGS), raises hope that we are getting closer to unveiling the fundamental nature of MBL and CLL and how they are related to each other.

Keywords: Chronic lymphocytic leukemia Cytogenetic Immunoglobulin genes Monoclonal B-cell lymphocytosis Next-generation sequencing.


For example, if a scientist would like to observe the consequences of light on a moth, the high level of the light is changed. Moreover, studies have found that blubber is quite a bit more effective at retaining heat than fur. Therefore, selection would occur for the combo of begging and feeding behaviours that results in the maximum fitness, leading to co-adaptation.

Through a string of further mutations, that trait might have evolved into the more direct kind of fire-based protection. A mutation is just a change in the DNA. Some mutations are of advantage to the organism while some aren’t.

The effects that environmental factors have on phenotypes aren’t easy to pin down, as there are so many possible facets to consider. Variation stemming from the look of mutations is known as variation through mutation while that conditioned by subsequent recombination of genes as a consequence of interbreeding is known as variation through recombination. To put it differently, organisms with phenotypes that are helpful for survival are more inclined to reproduce and pass on their genetic info.