No
No
No
Pairs of alleles that are the same, such as GG or nn, are referred to as "homozygous." In these cases, both alleles at a particular gene locus are identical, which can influence the expression of traits in an organism. If the alleles are different, such as Gg or Nn, the organism is considered "heterozygous."
When the members of a gene pair are identical, the organism is described as homozygous for that trait. This means both alleles, one inherited from each parent, are the same, whether they are dominant or recessive. Homozygosity can influence the expression of traits, as both alleles will produce the same phenotype. In contrast, if the alleles are different, the organism is heterozygous.
Dominant and Recessive Alleles Diploid organisms typically have two alleles for a trait. When allele pairs are the same, they are homozygous. When the alleles of a pair are heterozygous, the phenotype of one trait may be dominant and the other recessive.
alleles
4 The reason why the answer is 4 is because 2 of the pairs are heterozygous. When calculating possible gametes you take the number of heterozygous pairs and multiply them by each other (or raise 2 to the power equal to the number of heterozygous pairs you have). Therefore, since there are 2 heterozygous pairs in this genotype you multiply 2x2 (or 2^2).
Heterozygous refers to alleles that are not the same. For example, lets pretend that the gene for hair color is H for brown hair and h for blond hair. If someone was HH, they would be homozygous because the two alleles of the gene are the same. If a person was blond, their genes would have to be hh, which is homozygous recessive. Heterozygous is when the alleles are different, like so: Hh.
Identical pairs of alleles are called homozygous alleles.
In genetics, homozygous genes are identical alleles, while heterozygous genes have different alleles. For example, TT(same alleles) is homozygous genotype, while Tt (different alleles) is a heterozygous genotype.
Homozygous individuals have two identical alleles for a particular gene, while heterozygous individuals have two different alleles for the same gene. Homozygotes can be either homozygous dominant (two dominant alleles) or homozygous recessive (two recessive alleles), while heterozygotes have one dominant and one recessive allele.
Homozygous is a word that refers to a particular gene that has identical alleles on both homologous chromosomes. It is referred to by two capital letters (XX) for a dominant trait, and two lowercase letters (xx) for a recessive trait.