Question: Can replicated chromosomes have different alleles?

Do the two copies of each chromosome always have the same alleles?

More than two alleles for a gene can exist in a population. Certain types of cells, like plant cells have more than two copies of each chromosomes. … Each diploid only has TWO alleles for a gene (same or diff).

Are there always just two alleles for a gene?

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.

Do alleles differ in number of base pairs?

Alleles differ significantly in number of base pairs. … Alleles are specific forms of a gene.

How can two different alleles of the same gene be?

An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous.

What differences are there between the original and replicated part of each chromosome?

A replicated chromosome (or equivalently, a duplicated chromosome) contains two identical chromatids, also called sister chromatids. The difference between a duplicated chromosome and a chromatid, strictly speaking, is that a chromosome contains two chromatids that are joined at a structure called a centromere.

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Are replicated chromosomes homologous?

Do homologous chromosomes pair up? Yes, homologous chromosomes (replicated in S phase) pair up during synapsis to form tetrads.