4-2
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What chromosome is Down’s syndrome ?
Chromosome 21
What chromosome is for sickle cell?
Chromosome 11
Which chromosome is hemophilia? (Sex linked)
Chromosome 23
What is an extra copy of chromosome 21?
Down syndrome
What is it when the body produces abnormally thick mucus in the lungs and intestines?
Cystic fibrosis
What disease is it where a persons blood clots slowly or not at all?
Hemophilia
What disease affects the hemoglobin, the protein in a red blood cell?
Sickle cell anemia
This disorder is caused by a recessive allele on X chromosome
Hemophilia
This disorder is caused when an Extra copy of chromosome 21
Down’s syndrome
This disorder is caused when recessive alleles have a removal of 3 DNA bases
Cystic fibrosis
This disorder is caused by a codominant allele
Sickle cell anemia
Wheat is also know. As 3 chromosome?
Trisomy 21
What defects are common in Down’s syndrome
Heart defects
Down’s syndrome most often occurs when chromosome fail to separate during
Meiosis
What is a family tree that tracks members of a family that have a particular trait?
Pedigree
Genetic counsellors use what tools to help them in their work?
Karyotypes, pedigree charts, Punnett squares
Doctors use tools such as —- to help diagnosis genetic disorders
Karyotype
What is a picture of all the chromosomes in a cell?
Karyotype
What type of person makes both types of normal hemoglobin and abnormal hemoglobin will not have symptoms of sickle cell?
Heterozygous person
Where does hemophilia happen more in
Males
In the pedigree chart if it is all colored in it means the person
Has the trait
In the pedigree chart if the shape is only half colored it in it means the person is a
Carrier
In the pedigree chart shape is not colored in at all it means the person
Is neither a carrier or has the trait
What does genetic counseling do?
Genetic counselor help couples understand their chances of having a child with a particular disorder