PLANTS
ALTERNATION OF GENERATIONS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
are always linked on the same sister chromatid.
|
|
|
are always located on the equivalent locus of two nonhomologs.
|
|
|
are never located on the equivalent locus of two homologs.
|
|
|
are always located on the equivalent locus of two homologs.
|
Detailed explanation-1: -When the copies of a gene differ from each other, they are known as alleles. A given gene may have multiple different alleles, though only two alleles are present at the gene’s locus in any individual.
Detailed explanation-2: -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. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
Detailed explanation-3: -Notice that since the homologous chromosomes have similar structure, any allele pair is usually found along the same locus on the chromosomes.
Detailed explanation-4: -Each allele occupies a specific region on the chromosome called a gene locus. The gene’s two alleles are located in the same region in two homologous chromosomes, one inherited from each parent. The alleles may be dominant or recessive.