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What genetic disorder has 44 autosomes and 3 or more sex chromosomes?
Wiki User
∙ 14y ago
One collegue said that it is klinefelter syndrome.
Wiki User
∙ 14y ago
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Does crossing over produces chromosomes that carry genetic information from both homologous chromosomes?
The question is not proper. Please define more. I assume you meant whether the genetic information is transferred between homologous chromosomes. Yeah it does. When the two homologous chromosomes pair up to form bivalents, crossing over occurs between them.
Why do Males tend to be affected in greater numbers by X-linked recessive genetic disorders than females?
males have only one X chromosomes
Why do gametes have half the number of chromosomes as somatic cells?
Since you need 46 chromosomes total to function properly, and each of your parents have 46 chromosomes, you need to get 23 chromosomes from each of your parents in order to have the correct number of 46 chromosomes. You get 22 somatic chromosomes (autosomes) and 1 sex chromosome from each parent. Of course, during oogenesis or spermatogenesis, there could be nondisjunction, resulting in you receiving more or less chromosomes than you should. An example of this is Down Syndrome, where you receive an extra copy of Chromosome 21 from either parent. However, generally you will only receive 23 chromosomes from each parent (through their gametes) so that when they combine, you will have the correct 46 chromosomes. That is why gametes (haploid) have half the number of chromosomes as somatic cells (diploid).
Why do sexual reproduction results in more genetic variation in a species?
It combines different sets of DNA, instead of replicating the same set.
What happens if you have more than one chromosomes?
Individuals with additional chromosomes beyond the normal 2N complement are generally nonviable and the few exceptions that result in a live offspring are still profoundly affected in a negative way. he presence of additional sex chromosomes often have less profound effects.
Do autosomes have more than two chromosomes?
Autosomes come in pairs usually (one from the mother, and one from the father), but, sometimes, as in with genetic disorders, you might find things like trisomies, where you have 3 chromosomes for the same autosome, or monosomies, where you only have 1 instead of two.
In a human the 46 chromosomes would be at the equator during?
There won't be more than 23 Chromosomes at any stage unless the individual has a genetic disorder. They align in metaphase during mitosis and meiosis.
Red-green color blindness is a human genetic disorder cause by?
Color blindness is a sex-linked genetic disorder. The reason that it is more prevalent in males is because the disorder is linked the the X-chromasome. If a male inherits an X chromosome that is defective, then they will be color blind. However, a female has two X chromosomes which means she can receive a defective chromosome and only be a carrier of the mutation. If she receives two defective x chromosomes, she will be colorblind.
Where does homolophia occurs more often?
genetic disorder
Could a human end up with special ability if they had more chromosomes than normal?
Contrary to comic book mythology, if you mess with the number of chromosomes, the result is either a nonviable zygote, severe genetic abnormalities, or later in life, cancer. Humans can survive with extra or missing sex chromosomes, but usually an odd number of autosomes results in spontaneous abortion of the embryo. In short, you will not be able to read minds with a few extra chromosomes.
What are two types of chromosomes in the body how are they different?
the two types of chromatins are euchromatin and heterochromatin.They are different in that heterochromatin is coiled while euchromatin is not coiled.It is this coiling that makes heterochromatin inactive and therefore less in the nucleus when the nucleus is actively involved in protein synthesis.On the other hand,euchromatin is active because its DNA is exposed. When viewed under a microscope,the two chromatins have different stains.
What is a sex- linked disorder?
Certain genetic defects occur on the sex chromosomes, either X (female) or Y (male).
Is trimethylamine a human genetic disorder?
Trimethylamine is not a human genetic disorder. It is a product of decomposition in plants and animals. go to the related links box for more information on trimethylamine.
What is a punnet square for Down syndrome?
Down Syndrome is not represented by a punnett square because it is not a genetic disorder. Instead, it is a chromosomal disorder. Humans have 23 pairs of chromosomes adding to a total of 46 chromosomes. Individuals who have Down Syndrome have a total of 47 chromosomes because instead of having a set of 2 #21 chromosomes, he/she has 3 #21 chromosomes. This is a result of nondisjunction which can occur during meiosis. During meiosis, the chromosomal number is supposed to be halved. During nondisjunction, all of the homologous chromosomes (matching chromosomes from mom and dad) do not separate during meiosis. In the case of Down Syndrome, the #21 chromosomes fail to separate during meiosis. This results in an egg or sperm cell having one less or one more chromosome #21. If a normal egg or sperm forms a zygote with a egg or sperm that has an extra #21 chromosome, the resulting person will have Down Syndrome, also called Trisomy 21. The same thing can happen for other chromosomes, resulting in a different disorder. This question has been improved by another user: actually, this is both a genetic disorder and a chromosomal disorder. It is a genetic disorder because this disorder is often transmitted from one (or both) of the parents to their young. It is possible to make a punnett square, however there is a better way to do this, which is why you probably will not find a punnett square of this disease online. The better way is by using a karyotype. I know this because i am in a 9th grade bio honors class and i have been studying this disease for over 2 weeks now.. hi yea no your wrong because down syndrome is a genetic disorder :)
Is chromosome analysis considered genetic testing?
Genetic testing is a type of medical test that identifies changes in genes, chromosomes, or proteins. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person’s chance of developing or passing on a genetic disorder. More than 77,000 genetic tests are currently in use, and others are being developed. Genetic testing involves looking for changes in: Genes : Gene tests study DNA sequences to identify variations (mutations) in genes that can cause or increase the risk of a genetic disorder. Gene tests can be narrow or large in scope, analyzing an individual DNA building block (nucleotide), one or more genes, or all of a person’s DNA (which is known as their genome). Chromosomes : Chromosomal genetic tests analyze whole chromosomes or long lengths of DNA to see if there are large genetic changes, such as an extra copy of a chromosome, that cause a genetic condition. Proteins : Biochemical genetic tests study the amount or activity level of proteins or enzymes; abnormalities in either can indicate changes to the DNA that result in a genetic disorder. Swafe provides the best genetic testing kit in UAE S
Why are sex chromosome abnormalities more common?
Sex chromosome abnormalities are far more common than abnormalities of the other 44 chromosomes (the autosomes) because they rarely produce deadly diseases.
What is the difference between crossover and mutation in genetic algorithm?
mutation means change in genetic structure..where as crossover means interchanging the genetic structure of two or more chromosomes..
