2 different alelles - heterozygous
Same alelles - homozygous
Homologous chromosomes do not have identical DNA sequences; while they carry the same genes, the alleles (variations of those genes) can differ between the chromosomes. Additionally, homologous chromosomes can vary in size, shape, and genetic content due to the presence of different alleles and possible structural differences. Thus, the key characteristic that is not true for homologous chromosomes is that they are not identical in sequence.
Chromosomes that appear identical are called homologous chromosomes. They carry the same genes in the same order but may have different versions of those genes (alleles). Homologous chromosomes are inherited, one from each parent, and are important for genetic variation and the process of meiosis.
Yes, some gametes can be identical to each other after crossing over occurs during meiosis. Crossing over involves the exchange of genetic material between homologous chromosomes, which can create new combinations of alleles. However, if crossing over does not occur between two homologous chromosomes or if the alleles on the chromosomes are identical, the resulting gametes can be genetically identical.
Twins can have identical chromosomes if they are monozygotic (identical twins) because they develop from a single fertilized egg that splits into two embryos. This results in both twins having the same genetic makeup and identical chromosomes.
No, all alleles at a specific gene locus are not identical. Alleles are different forms of a gene that can result in different traits or characteristics. Each individual inherits two alleles for each gene, one from each parent. These alleles may be the same (homozygous) or different (heterozygous).
A pair of genes that are identical are called alleles. Alleles are different forms of the same gene that occupy the same position on homologous chromosomes.
Homologous chromosomes do not have identical DNA sequences; while they carry the same genes, the alleles (variations of those genes) can differ between the chromosomes. Additionally, homologous chromosomes can vary in size, shape, and genetic content due to the presence of different alleles and possible structural differences. Thus, the key characteristic that is not true for homologous chromosomes is that they are not identical in sequence.
When two alleles of a pair are identical, it is referred to as homozygous. When the two alleles are different, it is referred to as heterozygous. Homozygous individuals have two identical alleles (e.g., AA or aa), while heterozygous individuals have two different alleles (e.g., Aa).
no they don't necessarily have to have the same alleles but they have the same genes. Homozygous chromosomes would have the same allele for a particular gene and heterozygous chromosomes would have different alleles for a particular gene.
Chromosomes that appear identical are called homologous chromosomes. They carry the same genes in the same order but may have different versions of those genes (alleles). Homologous chromosomes are inherited, one from each parent, and are important for genetic variation and the process of meiosis.
All chromosomes consist of genes and non coding material. Animals with chromosomes arranged in the double helix pattern have two almost identical genes on the chromosomes opposite from the other. When those two genes in particular are discussed, they are called alleles. Frequently one is expressed and one is not, or one is dominant and the other is not.
Yes, some gametes can be identical to each other after crossing over occurs during meiosis. Crossing over involves the exchange of genetic material between homologous chromosomes, which can create new combinations of alleles. However, if crossing over does not occur between two homologous chromosomes or if the alleles on the chromosomes are identical, the resulting gametes can be genetically identical.
Twins can have identical chromosomes if they are monozygotic (identical twins) because they develop from a single fertilized egg that splits into two embryos. This results in both twins having the same genetic makeup and identical chromosomes.
Homologous chromosomes do not have identical genes. They are similar in that they carry the same genes in the same order, but they may have different versions of those genes (alleles) that can result in variations in traits. This genetic diversity is important for promoting evolution and adaptation in a population.
No, all alleles at a specific gene locus are not identical. Alleles are different forms of a gene that can result in different traits or characteristics. Each individual inherits two alleles for each gene, one from each parent. These alleles may be the same (homozygous) or different (heterozygous).
Alleles are located on chromosomes, which are found in the nucleus of a cell. They can exist in pairs on homologous chromosomes, with one allele from each parent. Alleles are the different forms of a gene that can code for different traits or characteristics.
at the same place on homologous chromosomes source: Alleles of a gene reside at the same locus on homologous chromosomes.