What is the definition of an allele quizlet?
An allele is an alternative form of a gene (one member of a pair) that is located at a specific position on a specific chromosome. These DNA codings determine distinct traits that can be passed on from parents to offspring. … They are exactly like their parents. It only has one division and that leads to two cells.
What is a description of an allele?
An allele is a variant form of a gene. … Genotypes are described as homozygous if there are two identical alleles at a particular locus and as heterozygous if the two alleles differ. Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism. Some alleles are dominant or recessive.
What is the best definition of an allele quizlet?
An Allele is best defined as. a specific form of gene. An allele is an alternative form of a gene located on a specific site of a chromosome. One allele is inherited from the mother and one from the father.
What best describes a allele?
An allele is all the DNA within an organism. This is actually the definition of genome, not allele. An allele is a section of DNA that codes for a protein. … The choice that best describes an allele is different forms of the same gene.
What is the main function of alleles?
Alleles are different forms of the same gene which are located on the same part of the chromosome. Genes are made up of information needed to produce different proteins, so alleles carry information to produce different versions of the same protein.
What is allele example?
Alleles are different forms of the same gene. … An example of alleles for flower color in pea plants are the dominant purple allele, and the recessive white allele; for height they are the dominant tall allele and recessive short allele; for pea color, they are the dominant yellow allele and recessive green allele.
What are alleles simple definition?
An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. … Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.
What do we call a description of an individual’s alleles for a particular gene?
An individual’s genotype for that gene is the set of alleles it happens to possess. In a diploid organism, one that has two copies of each chromosome, two alleles make up the individual’s genotype.
What do we call a description of a physical characteristic controlled by a gene?
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.
What are alleles quizlet Chapter 11?
alleles. one of a number of different forms of a gene. gametes.
What is an allele quizlet mastering biology?
What is an allele? a type of chromosome. the dominant form of a gene. an alternative version of a gene. a variety of pea plant used by Mendel.
Where are alleles located quizlet?
Where are the alleles located? One on each of the homologous chromosomes on which the locus for that gene is found.
Which is the best description of a gene quizlet?
A gene is best defined as: a segment of DNA. a transcribed unit of DNA. three nucleotides that code for an amino acid.
Which is the best description of a gene?
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.
What are alleles Class 12?
Alleles are a pair of genes that occupy a specific location on a particular chromosome and control the same trait. … All the alleles found in an organism make up the genotype. If a pair of alleles are similar, the organism’s genotype is called homozygous.