Which of the following is not an example of multiple alleles?

Explanation: In MN blood group system there are only two alleles M and N which are codominant. Thus, this is not an example of multiple alleles but ABO blood grouping is. 6.

What is an example of multiple alleles?

An example of multiple alleles is the ABO blood group system in humans. Human gene I (I for ‘isohaemagglutinin’) exists in three allelic forms: IA, IB, and IO. IA and IB produce type A and type B antigens, respectively, on the cell surface of RBCs whereas IO (or i) is a recessive allele and does not produce antigen.

Which of the following is an example of alleles?

An example of an allele is the gene that determines hair color. Either of a pair of genes located at the same position on both members of a pair of chromosomes and conveying characters that are inherited in accordance with Mendelian law. Any of the possible forms in which a gene for a specific trait can occur.

What are multiple alleles answer?

Multiple alleles refer to the occurrence of three or more than three alleles for a particular gene. Alleles are different or contrasting forms of a gene. For example, for the gene encoding for height, one allele can be for tallness, whereas the other can be for dwarfness.

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Which of the following is an example of multiple allele heredity?

The best characterized example of multiple alleles in humans is the ABO blood groups, discussed in the Non-Mendelian Inheritance concept. Other human traits determined by multiple alleles would be hair color, hair texture, eye color, built, physical structures, etc.

What is multiple alleles and co dominant alleles?

Whenever a given trait has three or more different alleles, we say that the trait has multiple alleles. One example of a trait the has multiple alleles is the human ABO blood group trait. … These three alleles that constitute the ABO blood group trait observe a pattern of inheritance called codominance (co-dominance).

Which pair of alleles are not identical?

An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous.

What is an example of multiple alleles trait What are the alleles that control that trait?

The majority of human genes are thought to have more than two normal versions or alleles. Traits controlled by a single gene with more than two alleles are called multiple allele traits. An example is ABO blood type.

Multiple Allele Traits.

Genotype Phenotype (blood type)
ii O
IAIB AB

How many types of alleles are there?

Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent. Each pair of alleles represents the genotype of a specific gene.

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Where are multiple alleles present?

Multiple alleles are present at the same locus as one type of chromosomes. The pairs of genes occupying a specific spot called locus on a chromosome are known as alleles.

What are multiple alleles Class 12?

Category : 12th Class. More than two alternative forms (alleles) of a gene in a population occupying the same locus on a chromosome or its homologue are known as multiple alleles.

What are multiple alleles in zoology?

Multiple alleles exist in a population when there are many variations of a gene present. In organisms with two copies of every gene, also known as diploid organisms, each organism has the ability to express two alleles at the same time.

How is human blood type an example of multiple allele?

An example of multiple alleles is the ABO blood-type system in humans. … In this case, the IA and IB alleles are codominant with each other and are both dominant over the i allele. Although there are three alleles present in a population, each individual only gets two of the alleles from their parents.