Question

GROUP A 1. Mr. and Ms. J have consulted a genetic counselor. Ms. J is 8 weeks pregnant, and cystic fibrosis runs in both of their families. Cystic fibrosis is a disease in which an individual may carry the disease allele but not have cystic fibrosis. A term to describe this type of trait is 2. First, the genetic counselor prepared a diagram summarizing the incidence of cystic fibrosis in the two families and the relationships between family members. This type of diagram is called a(n) 3. Mr. and Ms. J were then screened for the presence of the cystic fibrosis allele. It was determined that both Mr. and Ms. J have the allele even though they do not have cystic fibrosis. For the cystic fibrosis trait, they are both considered to be 4. Ms. J wanted to know if her baby would have cystic fibrosis. Cells were taken from the hairlike projections of the membrane that surrounds the embryo. This technique is called 5. The fetus was shown to carry one normal allele and one cystic fibrosis allele. The fact that the alleles are different means that they can be described as 6. As part of the prenatal screening, the chromosomes were obtained from cells in metaphase and photographed for analysis. This form of evaluation is called a(n) 7. The analysis revealed the presence of two XX chromosomes. The gender of the baby is therefore GROUP B 1. Mr. and Ms. B have a child with three copies of chromosome 21. The child has a chromosomal abnormality known as 2. This abnormality, like any change in DNA, is known as a(n) 3. Chromosome 21 is one of 22 pairs of chromosomes known as 4. The remainder of the child's chromosomes are normal. The total number of chromosomes in the child's cells is 5. The chromosome abnormality arose during the production of gametes. The form of cell division that occurs exclusively in germ cell precursors is called 6. The family knew in advance about their baby's chromosome abnormality because of prenatal screening and testing. The first indication was an abnormal accumulation of fluid at the back of the fetus's neck. This test, which uses ultrasound, is known as the

GROUP A
1. Mr. and Ms. J have consulted a genetic counselor. Ms. J is 8 weeks pregnant, and cystic fibrosis runs in both of their families. Cystic fibrosis is a disease in which an individual may carry the disease allele but not have cystic fibrosis. A term to describe this type of trait is
2. First, the genetic counselor prepared a diagram summarizing the incidence of cystic fibrosis in the two families and the relationships between family members. This type of diagram is called a(n)
3. Mr. and Ms. J were then screened for the presence of the cystic fibrosis allele. It was determined that both Mr. and Ms. J have the allele even though they do not have cystic fibrosis. For the cystic fibrosis trait, they are both considered to be
4. Ms. J wanted to know if her baby would have cystic fibrosis. Cells were taken from the hairlike projections of the membrane that surrounds the embryo. This technique is called
5. The fetus was shown to carry one normal allele and one cystic fibrosis allele. The fact that the alleles are different means that they can be described as
6. As part of the prenatal screening, the chromosomes were obtained from cells in metaphase and photographed for analysis. This form of evaluation is called a(n)
7. The analysis revealed the presence of two XX chromosomes. The gender of the baby is therefore

GROUP B
1. Mr. and Ms. B have a child with three copies of chromosome 21. The child has a chromosomal abnormality known as
2. This abnormality, like any change in DNA, is known as a(n)
3. Chromosome 21 is one of 22 pairs of chromosomes known as
4. The remainder of the child's chromosomes are normal. The total number of chromosomes in the child's cells is
5. The chromosome abnormality arose during the production of gametes. The form of cell division that occurs exclusively in germ cell precursors is called
6. The family knew in advance about their baby's chromosome abnormality because of prenatal screening and testing. The first indication was an abnormal accumulation of fluid at the back of the fetus's neck. This test, which uses ultrasound, is known as the

GROUP A
1. Mr. and Ms. J have consulted a genetic counselor. Ms. J is 8 weeks pregnant, and cystic fibrosis runs in both of their families. Cystic fibrosis is a disease in which an individual may carry the disease allele but not have cystic fibrosis. A term to describe this type of trait is
2. First, the genetic counselor prepared a diagram summarizing the incidence of cystic fibrosis in the two families and the relationships between family members. This type of diagram is called a(n)
3. Mr. and Ms. J were then screened for the presence of the cystic fibrosis allele. It was determined that both Mr. and Ms. J have the allele even though they do not have cystic fibrosis. For the cystic fibrosis trait, they are both considered to be
4. Ms. J wanted to know if her baby would have cystic fibrosis. Cells were taken from the hairlike projections of the membrane that surrounds the embryo. This technique is called
5. The fetus was shown to carry one normal allele and one cystic fibrosis allele. The fact that the alleles are different means that they can be described as
6. As part of the prenatal screening, the chromosomes were obtained from cells in metaphase and photographed for analysis. This form of evaluation is called a(n)
7. The analysis revealed the presence of two XX chromosomes. The gender of the baby is therefore

GROUP B
1. Mr. and Ms. B have a child with three copies of chromosome 21. The child has a chromosomal abnormality known as
2. This abnormality, like any change in DNA, is known as a(n)
3. Chromosome 21 is one of 22 pairs of chromosomes known as
4. The remainder of the child's chromosomes are normal. The total number of chromosomes in the child's cells is
5. The chromosome abnormality arose during the production of gametes. The form of cell division that occurs exclusively in germ cell precursors is called
6. The family knew in advance about their baby's chromosome abnormality because of prenatal screening and testing. The first indication was an abnormal accumulation of fluid at the back of the fetus's neck. This test, which uses ultrasound, is known as the

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