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Which one is not a genetic disorder color blindness hemophilia cystic fibrosis down syndrome?
Down syndrome is a polyploidy (three chromosome 21s)and is considered to be a somatic disorder. The other three are genetic because they are present in the form of a defective allele on achromosome.
Describe three ways genetic diseases are caused?
1. (1) Produced by an abnormality in, or a mutation of the genetic code in a single gene; (2) Caused by several abnormal genes (Producing so-called polygenic diseases); or (3) Caused by the abnormal presence or absence of an entire chromosome or by alteration in the structure of chromosomes.
What is a genetic wheel?
Because of four different bases, there are 64 possible three-base codons (4x4x4=64). the genetic wheel shows all 64 possible codons of the genetic code.
All organisms have a genetic code made of?
All organisms have a genetic code made of these three nucleotide sequences called codons.
What is genetic engineering describe three possibilities benefits on this technique?
Genetic Engineering is the study and application of genetics for a better life/future. Genetic engineering can be used to produce medicines & to improve food crops. Researchers are also using genetic engineering to try to cure human genetic disorders.
When Having three copies of chromosomes 21 leads to a disorder known as trisomy 21 or more commonly as?
Down syndrome is trisomy 21
Which term is defined as all the genes in a person's twenty-three pairs of chromosomes?
Humans without a disorder will have 23 pairs of chromosomes. However, there are many disorders caused by different numbers of chromosomes. For example, Trisomy 21 (Down Syndrome) is a disorder caused by the presence of an extra chromosome 21.
What happen lack of chromosomes?
If there is a lack of chromosomes, then the full genetic structure of a human being cannot be reproduced because a human is made up of forty-three chromosomes (twenty-three from each parent) and if one is missing, there will only be forty-five, which will not reproduce a human being.
What are the three outcomes of meiosis?
Three outcomes of meiosis: it reduces chromosomes to the haploid number, it provides genetic variation, and it ensures the correct distribution of chromosomes into the resulting cells.
Which one is not a genetic disorder color blindness hemophilia cystic fibrosis down syndrome?
Down syndrome is a polyploidy (three chromosome 21s)and is considered to be a somatic disorder. The other three are genetic because they are present in the form of a defective allele on achromosome.
What are three ways to get genetic variation?
Independent assortment of chromosomes, crossing over and Random fetiliztion
What three things are DNA made up of?
phosphate and sugar (deoxyribose) backbone and N (nitrogen) base.
How many chromosomes are in 1 pair of chromosomes?
There are 46 chromosomes (condensed threads of genetic material formed from chromatin as a cell prepares to divide), and 23 pairs of chromosomes in the human body.
What are the 3 sources of genetic recombination?
Genetic recombination refers to the process by which two DNA molecules exchange genetic information. The three types of genetic recombination are crossing over, conservative site-specific recombination and transpositional recombination.
How many chromosome does a gamete contain?
there are 23 chromosomes in a human gamete
How does triple x syndrome occur?
Triple X syndrome is a genetic disorder in which a girl has three X chromosomes instead of two. Triple X occurs once in every 1,000 female births. However, doctors believe many girls with Triple X go their lifetime undiagnosed. The major features of Triple X are learning, behavioral and emotional problems. Compared with other syndromes in which a person has inherited three chromosomes. Triple X is quite mild in nature.
Meiosis aids in evolution because it what?
Because of genetic recombination and this is done in three ways. The independent orientation of chromosomes at prometaphase, crossing over and the process of random fertilization all insure a good recombination of genetic material.
