Genotypes In Children

Phenotype: The physical appearance of a trait in an organism. The phenotype of the above chicken is that it is black. A phenotype could be that a person has blue eyes, or curly hair.

Introduction: In this frog population, traits such as eye color, skin color, and the presence or absence of spots are coded for by DNA. The nitrogenous bases in a strand of DNA make up an organisms genotype. The physical expression of the genotype is the phenotype.

This specific genotype will in turn code for specific traits or characteristics expressed known as the phenotype. On this note, there are different types of genotypes; for instance, there are homozygous and heterozygous alleles that can be present in a genotype. Being heterozygous means that there are two different alleles. In contrast, a homozygous genotype involves two of the same alleles. Together, alleles can be either dominant or recessive, or they can also be heterozygous and homozygous. A dominant allele is usually the gene expressed in the phenotype while the recessive allele is expressed when the genotype is homozygous (Biology

Whether or not a gene is expressed depends on two different things: the interaction of the gene with other genes and the continual interaction between the genotype and the environment. The simplest genetic rule is the dominant-recessive pattern in which a single dominant gene strongly influences phenotype. If a child receives a single dominant gene, for a trait from one parent, the child’s phenotype will include the trait determined by that gene. In contrast, a child’s phenotype will include a recessive trait only if she inherits a recessive gene from both parents. Eye color is one example of dominant-recessive genes at work. The gene for brown eyes is dominant and the gene for blue eyes is recessive. If one parent hands down a dominant brown eye gene while the other parent hands down a recessive blue eye gene, the dominant gene will win out and the child will have brown eyes. A person’s sex is also determined in the womb. An individual inherits 23 pairs of chromosomes. Twenty- two of these pairs of chromosomes, called autosomes, contain most of the genetic information controlling highly individual characteristics like hair color, height, body shape, temperament, aspects of intelligence and also all those characteristics shared by all members of our species, such as pattern of physical development. The twenty-third pair,

simply the genetic makeup of the organism, while the phenotype is the physical and observable

Phenotype of a person takes shape by his or her genotype and the article titled “New Genes as Drivers of Phenotypic Evolution” is based on that idea because primary source of phenotypic diversity is genetic diversity. Chen et al.(2013) state that evolution of the genome may happen in various ways for example alteration to coding and non-coding sequences, which is known as occurrence of new genes. Chen et al.(2013) say that new genes are the genes that appeared in a specific time during evolution at a locus which did not exist before. They add that new genes may affect and help that genetic diversity as the basic unit of genetic material. There are a lot of ways to generate new structure. Chen et al.(2013) state that new gene expression

Phenotype is defined as the morphological, physiological and behavioral characteristics of an individual while genotype is an individual’s entire genetic makeup (2, 3). A phenotype terminology is a catalog of specific signs, symptoms, imaging findings, and other

All living things contain DNA which contains genes. These genes determine our physical appearance and how the body functions. “Phenotype” refers to the physical characteristics inherited from parents and “genotype” is determined by the alleles present in a gene. There are two types of genotypes, homozygous and heterozygous, and there are two types of genes, dominant and recessive. Dominant genes are those whose alleles are represented by a capital letter and recessive are represented by a lowercase. The gene “Bb” is a heterozygous dominant gene, and “bb” homozygous recessive. Gregor mendel is the father of the modern study of genetics.

Traits get passed down from one generation to the next through Meiosis (cell division), where each parent gives you one Gene for each trait.

It has long been known that certain physical characteristics are biologically determined by genetic inheritance. Color of eyes, straight or curly hair, pigmentation of the skin and certain diseases (such as Huntingdon’s chorea) are all a function of the genes we inherit. Other physical characteristics, if not determined, appear to be at least strongly influenced by the genetic make-up of our biological parents.

Genotype is the genes that we inherit from our parents also known as our DNA. DNA is composed of four nucleotides known as adenine (A), thymine (T), guanine (G), and cytosine (C). Each nucleotide has a complementary pair, which afterwards encodes certain information, adenine’s complimentary pair is thymine, and cytosine’s complimentary pair is guanine. As stated by Ed Green in the NOVA What Makes Us Human, “The order of the nucleotide encodes the information. In human DNA, the way these four molecules line up over 3 billion times determines who we are.” Depending on how these genes line up and how they transcribe into proteins is how we obtain our characteristics. These molecules are part of the reason why we posses the same genome for a trait, yet the appearance of the trait is different. For example, my friend and

But most importantly, genes play a vital role in determining physical characteristics, such as hair and eye colour.

The way we look can be argued to be mainly due to nature. The genes we inherit from our parents make the basis of we look. For example, people often say ‘Don’t you look like your father/mother!’ Genetic inheritance can determine our eye colour, whether we have straight or curly hair or how tall we will be. We

The phenotypes may vary between individual in a population because of both environment and gene that affect the environment.

The way genes are arranged in each cell within us determine the different features that we have, physical attributes like eye color, hair color, ear size, height, and other traits. However, it is still not known whether the more complex attributes like personality, intelligence, sexual orientation, likes and dislikes are gene-coded in our DNA, too. Some philosophers such as Plato and Descartes suggested that certain things are inborn, or that they occur naturally regardless of environmental influences. Nativists take the position that all or most behaviors and characteristics are the results of inheritance. Advocates of this point of view believe that all our characteristics and behaviors are the result of evolution. Genetic traits handed down from parents influence the individual differences that make each person unique.