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The exceptions to the rule that every chromosome is part of a homologous pair are the gametes. Gametes are eggs and sperm, and each cell has only 23 chromosomes, which form pairs in the zygote after fertilization.

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How many chromosomes are in a homologous pair?

in a homologous chromosome there are two chromosomes ( a chromosome and a sister chromosome)


Where does each chromosome in a pair of homologous chromosomes come from?

Each chromosome in a pair of homologous chromosomes is inherited from one parent. One chromosome comes from the mother (maternal) and the other from the father (paternal).


Which homologous chromosome pair in humans is the only one that is not identical?

The only homologous chromosome pair in humans that is not identical is the sex chromosomes, specifically the X and Y chromosomes.


What is containing one chromosome of each pair of homologous pair?

This would be the haploid condition.


When a cell contains only chromosome of each homologous pair the cell is?

Haploid


What do you call the two members of a chromosomes pair?

i think its called a homologous chromosome.


When a cell contains only one chromosome of each homologous pair the cell is .?

Haploid


How many chromatids are involved in crossing over of a homologous pair of chromosomes?

Crossing over involves the exchange of genetic material between homologous chromosomes during meiosis. Each homologous pair consists of four chromatids (two from each chromosome), and crossing over occurs between a pair of chromatids from each homologous chromosome. This results in the exchange of genetic material between the chromatids.


What is the composition of a bivalent at the beginning of prophase 1?

A bivalent at the beginning of prophase I is composed of two homologous chromosomes that have already replicated into sister chromatids. Each homologous chromosome consists of two sister chromatids joined by a centromere. The bivalent forms as the homologous chromosomes pair up and undergo synapsis.


What are pair of similar chromosomes called?

HomologousWe receive one complete set of chromosomes from each parent. This means that for each chromosome, say chromosome 7, there are two copies in every cell of our bodies: the maternal and paternal copies of chromosome 7.The two copies of one chromosome are called a pair of homologous chromosomes.


Why is the 23rd pair of chromosomes not always homologous?

The 23rd pair of chromosomes are the sex chromosomes. In female humans, both sex chromosomes are homologous, and characterized as XX. In male humans, one sex chromosome is an X chromosome and the other is a much smaller, nonhomologous Y chromosome, and is characterized as XY.


What is a pair of corresponding chromosomes called?

A pair of corresponding chromosomes is called homologous chromosomes. They are similar in size and carry genes that control the same traits. One chromosome in the pair is inherited from each parent.