Table of Contents
- 1 What term describes alleles that are the same?
- 2 Which of the following terms describes an individual that has two different alleles for the same trait quizlet?
- 3 What is the best definition of allele?
- 4 How alleles are formed?
- 5 What is an organism with two same alleles for a trait?
- 6 What is allele explain?
- 7 What term describes pair of alleles that are the same?
- 8 What are the specific alleles that an individual has?
What term describes alleles that are the same?
Allele. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.
Which term describes the pair of alleles DD?
Allelic pair – the combination of two alleles which comprise the gene pair. Homozygote – an individual which contains only one allele at the allelic pair; for example DD is homozygous dominant and dd is homozygous recessive; pure lines are homozygous for the gene of interest.
Which of the following terms describes an individual that has two different alleles for the same trait quizlet?
The set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait. The different forms of a gene. An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait.
What is allele example?
Different versions of a gene are called alleles. For example, the allele for brown eyes is dominant, therefore you only need one copy of the ‘brown eye’ allele to have brown eyes (although, with two copies you will still have brown eyes).
What is the best definition of allele?
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Genotypes are described as homozygous if there are two identical alleles at a particular locus and as heterozygous if the two alleles differ.
Are alleles DNA?
Except in some viruses, genes are made up of DNA, a complex molecule that codes genetic information for the transmission of inherited traits. Alleles are also genetic sequences, and they too code for the transmission of traits. The short answer is that an allele is a variant form of a gene.
How alleles are formed?
Mutations have introduced gene variants that encode for slightly different proteins, which in turn, influence all aspects of our phenotype. When SNPs and other mutations create variants or alternate types of a particular gene, the alternative gene forms are referred to as alleles .
When there are two different alleles for a trait quizlet?
An organism that has two different alleles for a trait is called heterozygous. An organism with two alleles that are the same is called homozygous.
What is an organism with two same alleles for a trait?
An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene. An organism which has two different alleles of the gene is called heterozygous.
What are 2 examples of alleles?
Gene vs allele: chart
| Gene | Allele | |
|---|---|---|
| Determines | An organism’s genotype | An organism’s phenotype |
| Number per genus locus | One | Two |
| Various Types | Alleles | Paternal vs maternal Dominant vs recessive |
| Examples | Eye color, hair color, skin pigmentation | Blue eyes, brown hair, dark skin |
What is allele explain?
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism. Some alleles are dominant or recessive.
What’s an example of allele?
What term describes pair of alleles that are the same?
The combination of alleles that an organism carries constitutes its genotype. If the paired alleles are the same, the organism’s genotype is said to be homozygous for that trait; if they are different, the organism’s genotype is heterozygous. A dominant allele will override the traits of a recessive allele in a heterozygous pairing.
What is organism with the same alleles?
If two alleles of a given gene are identical, the organism is called a homozygote and is said to be homozygous with respect to that gene; if instead the two alleles are different, the organism is a heterozygote and is heterozygous.
What are the specific alleles that an individual has?
Each person has two copies of each allele so multiply two by 100 to give 200 allele copies in the population. In real life, there are many genes that code for human eye color, but for this scenario, there are only three different allele combinations in this gene pool; BB, BG and GG.
What are identical alleles?
Identical alleles means the alleles are same ( or the DNA sequences of the alleles of a gene are identical). In other words the versions of the gene are same. For example, for our ABO gene which determine our blood group, we have 3 different alleles- A, B and O. Here, A and B are co-dominant and O is recessive.