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s:/blackboard.ecu.edu/webapps/assessment/review/review jsp?attempt id 39982012_1& course id 433972 18icontent id- 957 0 Twitch Google Soundcloud f Facebook+ Youtubeto MP3 Blackboard oa school Mail Panthers OneDrive Netflix , 10the Question 17 0 out of 5 points A woman who sought genetic counseling is found to be heterozyous for a hromosomal rearrangement between the second and third chromosomes. chromosomes, compared to those in a normal karyotype, are diagrammed below: 2/3 2/3 2 The women has had two miscarriages. What is the chance that she could have a normal child? Selected Answer: a. The chance of a normal child is approximately one in four; however, all of the normal children will be translocation carriers. 5 out of 5 points Question 18 The Lyon hypothesis cannot be tested in a human female who is homozygous for one allele of the X-inked G6PD gene. Why? One cannot test the Lyon hypothesis with homozygous X-linked genes because the test requires identification of allelic alternatives to see differences in X chromosome activity Answer:Explanation / Answer
Answer
Translocation is an exchange of chromosome segments. there are two type of translocations.
i. Centric fusion of acrocentric chromosomes
ii. Reciprocal translocation
Reciprocal translocation is an exchange of chromosomal material between two chromosomes.No chromosomal material is lost or added with a reciprocal translocation,
The given suitation comes under reciprocal translocation
there are chnaces of translocations
balanced reciprocal translocation and unbalanced translocation.
The codition is Balanced translocation.A balanced translocation will not produce any effect on their own health. And the childrens inherited balanced translocation also not effected with health problems.
When a has balanced translocation, the possibility of losing the pregnancy, usually occurs in the first three months o but sometimes later, rises to 20-30 % and is over 50 %. Miscarriages at this situation because the developing baby has unbalanced chromosomes - more chromosome material or too little. The greater the imbalance, the pregnancy will not be established in the first place or, it will be lost. Each time you try for a pregnancy, the possibilities are the same - of a baby with normal or balanced chromosomes, or of a baby with unbalanced chromosomes.
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