What happens to a chromosome during translocation?

What will happen to a person of translocation occurs?

chromosomal disorder

…be transferred to another (translocation), which has no effect on the person in which it occurs but generally causes a deletion or duplication syndrome in his or her children. Changes in chromosome number occur during sperm or egg formation or in the early development of the embryo.

What happens to the chromosome in translocation?

A translocation occurs when a piece of one chromosome breaks off and attaches to another chromosome. This type of rearrangement is described as balanced if no genetic material is gained or lost in the cell. If there is a gain or loss of genetic material, the translocation is described as unbalanced .

Do translocations affect chromosome number?

In genetics, chromosome translocation is a phenomenon that results in unusual rearrangement of chromosomes. This includes balanced and unbalanced translocation, with two main types: reciprocal-, and Robertsonian translocation.

When does chromosome translocation occur?

Translocations occur when chromosomes become broken during meiosis and the resulting fragment becomes joined to another chromosome. Reciprocal translocations: In a balanced reciprocal translocation (Fig. 2.3), genetic material is exchanged between two chromosomes with no apparent loss.

IT IS INTERESTING:  Quick Answer: Can Huntington's disease be homozygous dominant?

When does translocation occur in the cell cycle?

Translocations occur when chromosomes become broken during meiosis and the resulting fragment becomes joined to another chromosome. Reciprocal translocations: In a balanced reciprocal translocation (Fig. 2.3), genetic material is exchanged between two chromosomes with no apparent loss.

How many chromosomes are involved in translocation?

Translocation Down syndrome is a type of Down syndrome that is caused when one chromosome breaks off and attaches to another chromosome. In this case, there are three 21 chromosomes but one of the 21 chromosomes is attached to another chromosome.

When does translocation occur in plants?

The movement of sucrose and other substances like amino acids around a plant is called translocation . In general, this happens between where these substances are made (the sources) and where they are used or stored (the sinks): from sources in the root to sinks in the leaves in early spring time.

How does a translocation result in reduced fertility?

Pathogenesis of Infertility with a Balanced Translocation

Chromosomal translocations may affect fertility due disruption of meiosis [7]; segregation during meiosis results in gametes with duplication or deficiency of chromosome segments (aneusomy or trisomy) [9, 12].

Does translocation occur during crossing over?

Deletions, duplications, inversions, and translocations can all be produced by such crossing- over (Figure 8-16b); thus crossing-over probably constitutes a significant source of these rearrangements.

What do you understand by translocation?

: the act, process, or an instance of changing location or position: such as. a : the conduction of soluble material (such as metabolic products) from one part of a plant to another.

IT IS INTERESTING:  Your question: Which set of alleles are homozygous?

What is translocation homozygote?

Quick Reference. An individual or cell in which two pairs of homologous chromosomes have reciprocally exchanged nonhomologous segments between one member of each pair.

How often does translocation occur?

An estimated one in 560 people have a balanced translocation. It is not clear why balanced translocation occurs. It can be an inherited trait or can occur in a fetus even when neither parent is affected by the condition.