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Normal chromosomes
Normal humans have 23 pairs of chromosomes, for a total of 46 chromosomes. The 23rd pair is XX in women and XY in men. Abnormal chromosomes are called genetic defects or chromosomal abnormalities.
Dr. Jeff Livingston reviewed this
24 year experience in Obstetrics and Gynecology
Related questions
A 31-year old female asked:
Does a person with thalasemia trait (minor) have normal chromosomes?
2 doctor answers • 5 doctors weighed in
A 46-year old female asked:
My son is 11 years old and just had his FIRST EVER chromosomal microarray. It came back as completely normal, but they diagnosed him with autism at 3. How can he be autistic but has a normal chromosomal microarray?
1 doctor answer • 1 doctor weighed in
A 24-year old female asked:
There is absence of chromosomal 15 in me.. Is my offspring will be normal? If not then tell me thee abnormality ratio.. Plz please
2 doctor answers • 3 doctors weighed in
A 41-year old female asked:
What does it mean when your told you are normal carrier type negative slt3 and they talked about chromosome 16 my daughter passed from leukemia?
2 doctor answers • 3 doctors weighed in
A 32-year old female asked:
If parents' karyotyping is normal, what are the chances for recurrent early miscarriages due to chromosomal problems in fetus? Pls answer as clearly
1 doctor answer • 5 doctors weighed in
A 34-year old female asked:
Had a reassurance US at 10W1D. Was told by MFM that HB was good (am followed for RPL and factor V). Awaiting free cell DNA testing results. Do chromosomal abnormal babies have different heart rates at 10 weeks? Ie faster or slower than normal?
1 doctor answer • 1 doctor weighed in
A 39-year old female asked:
Can it be too early to detect cancer in bone marrow biopsy? My labs show low RBC HGB 7.1 iron and is normal b12 is high. Had a bone marrow biopsy and chromosome testing done it was negative. No signs of cancer. Could it be too soon to detect cancer?
2 doctor answers • 2 doctors weighed in
A 39-year old female asked:
I had bone marrow biopsy and Chromosome- Crytogenics and FISH testing done because of anemia RBC and platelets were low. Platelets restored but RBC did not. My test were all normal. Could I have chronic myeloid leukemia or would it be seen in testing?
1 doctor answer • 2 doctors weighed in
A 41-year old asked:
What is chromosome 13?
1 doctor answer • 5 doctors weighed in
A 49-year old asked:
What conditions and disabilities are linked to chromosome 17?
1 doctor answer • 1 doctor weighed in
A 42-year old asked:
Which chromosome causes cml?
1 doctor answer • 1 doctor weighed in
A 35-year old asked:
What people have XXY chromosomes?
1 doctor answer • 2 doctors weighed in
A 37-year old asked:
What are some chromosomal disorders?
1 doctor answer • 4 doctors weighed in
A 45-year old asked:
What are chromosomes? Building blocks?
2 doctor answers • 3 doctors weighed in
A 48-year old asked:
What are men like if extra y chromosome?
1 doctor answer • 2 doctors weighed in
A 39-year old asked:
Which chromosome is polydactyly found in?
1 doctor answer • 2 doctors weighed in
A male asked:
How is progeria caused in the chromosomes?
2 doctor answers • 2 doctors weighed in
A male asked:
How we can improve Y chromosomes in semen?
2 doctor answers • 4 doctors weighed in
A 29-year old asked:
What are some somatic chromosome disorders?
1 doctor answer • 3 doctors weighed in
A 45-year old asked:
What chromosome in males is affected by dmd?
1 doctor answer • 2 doctors weighed in
A 39-year old asked:
Should I get testing for chromosomal disorders?
4 doctor answers • 8 doctors weighed in
A 30-year old asked:
I've achromatopsia, which chromosome is affected?
1 doctor answer • 1 doctor weighed in
A 38-year old asked:
What chromosomal abnormalities only effect males?
1 doctor answer • 3 doctors weighed in
A 28-year old asked:
What sort of disease is a chromosomal abnormality?
2 doctor answers • 9 doctors weighed in
A 27-year old asked:
How do I find out about chromosomal disorder testing?
2 doctor answers • 2 doctors weighed in
A 52-year old asked:
What are typical symptoms of chromosomal abnormalities?
2 doctor answers • 4 doctors weighed in
A 32-year old asked:
What happens if a human gamete with an extra chromosome?
1 doctor answer • 3 doctors weighed in
A 45-year old asked:
Which chromosome is affected in a person with hemophilia?
1 doctor answer • 1 doctor weighed in
A 35-year old asked:
I wanted to know is celiac a chromosome or point mutation?
2 doctor answers • 4 doctors weighed in
A 47-year old asked:
Can you tell me are chromosomal mutations always syndromes?
1 doctor answer • 2 doctors weighed in
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