Sickle Cell Disease Quiz
Preview:
During meiosis, the number of chromosomes in the cell ___________.
A. Stays the same
B. Doubles
C. Divides in half
D. None of these.
Look at the pedigree. What are the chances that person a child of III-10 will have a child with sickle cell disease?
A. 0%
B. 25%
C. 50%
D. 100%
Genes contain instructions for assembling
A. Chromosomes
B. Lipids
C. Carbohydrates
D. Proteins
Sickle cell anemia is caused by
A. a lack of red blood cells
B. a genetic abnormality in the amino acids
C. lack of available oxygen
D. too much iron in the circulatory system
The ability to curl your tongue up on the sides is dominant to not being able to roll your tongue. A woman who can roll her tongue marries a man who cannot. Their first child has his father’s phenotype. What are the genotypes of the mother, father, and child (in that order)?
A. TT, Tt, tt
B. Tt, tt, tt
C. Tt, Tt, TT
D. tt, Tt, Tt
If a mother is a carrier for a recessive genetic disorder and the father is unaffected, what is the probability that their child will be a carrier?
A. 100%
B. 0%
C. 25%
D. 50%
During mitosis, the number of chromosomes in the cell ___________.
A. Stays the same
B. Doubles
C. Divides in half
D. None of these.
Organisms that have two different alleles for a particular trait are said to be
A. recessive
B. homozygous
C. heterozygous
D. dominant
In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?
A. It is BB.
B. It is Bb
C. It is brown
D. It is bb.
How many kids did the mother and father from the first generation have?
A. 2
B. 4
C. 5
D. 6
In a pedigree, which of the following represents a female carrier?
A. A colored circle
B. A half-colored circle or square
C. A half-colored circle
D. A colored square
A pedigree can be used to __________________.
A. predict what chance an individual has of inheriting a certain disorder
B. show how a trait is passed from one generation to the next.
C. determine whether an allele is dominant or recessive.
D. All of these choices.
If two parents are carriers for sickle cell disease, then their children have a ____ chance of NOT having sickle cell disease.
A. 25%
B. 50%
C. 75%
D. 0%
Huntington’s Disease is an autosomal dominant condition. This means
A. Two recessive copies are needed to have the disease
B. One dominant copy of the gene is needed to have the disease
C. Two copies of the dominant gene are needed to have the disease
D. It is linked to the Y chromosome and only men can have it
A man with hemophilia would have which of the following genotypes?
A. XHY
B. XhYh
C. hh
D. XhY
