What is two different alleles for a trait?
An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive, but often they are neither.
When an organism has two different alleles for the same trait?
An organism with two different alleles for a specific trait is called heterozygous or hybrid.
What cell contains different alleles for a trait?
Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent of an organism.
What is most likely to differ between two alleles for the same gene?
What is different between two alleles of the same gene? The information they carry. For example, one allele might carry the information for blue eye pigment, while the other carries the information for brown eye pigment.
When alleles differ allele that determines the organism’s appearance?
“if the two alleles at a locus differ, then one, the dominant allele, determines the organism’s appearance; the other, the recessive allele, has no noticeable effect on the organism’s appearance.” (Text quoted from page 254 of the textbook) A dominant allele may be expressed when only one dominant allele is present.
When a plant have two different alleles of a gene it is called?
Each plant’s genotype contributes to its phenotype, which, in this case, is the outward appearance of its flowers. A particular genotype is described as homozygous if it features two identical alleles and as heterozygous if the two alleles differ.
What is source of the different alleles of the same gene?
What is the original source of variation among the different alleles of a gene? Mutations in a gene lead to the different versions (alleles) of that gene.
When two alleles are homozygous the trait of each chromosome is?
Mendel’s Law of Independent Assortment states the inheritance of one pair of factors ( genes ) is independent of the inheritance of the other pair. If the two alleles are identical, the individual is called homozygous for the trait; if the two alleles are different, the individual is called heterozygous.
What are some examples of alleles?
Gene vs allele: chart
|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|