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Master Genetics concepts with free TEAS practice questions and detailed rationales. These questions will help you reinforce your understanding and improve your score on the TEAS exam.
Which of the following sugars is found in DNA?
In a DNA double helix, the bases are held together by hydrogen bonds. These hydrogen bonds are __________.
Which of the following explains why a male is more likely to express a trait like color blindness, which is caused by an X-linked recessive allele?
In a study of a rare autosomal dominant disorder, a researcher examines a family where one parent is affected (genotype Aa) and the other is unaffected (aa). Their first child does not have the disorder. What is the probability that their second child will have the disorder, considering Mendel’s principles?
Which of the following best describes why males are more likely to express an X-linked recessive trait, such as red-green color blindness?
A nurse is preparing a patient education session about DNA’s role in heredity. Which statement best describes the function of DNA in a human cell?
A nurse is reviewing a patient’s family history and notes a pattern of color blindness, an X-linked recessive trait. Which family member is most likely to exhibit this condition?
A nurse is assessing a patient whose family history indicates a risk of Huntington’s disease, an autosomal dominant disorder. The patient’s father has the disease, and the mother is unaffected. What is the probability that the patient inherited the disease, and what nursing intervention is most appropriate?
A nurse is counseling a couple about the risk of their child inheriting cystic fibrosis, an autosomal recessive disorder. Both parents are carriers (heterozygous). What is the probability that their child will have cystic fibrosis, and what nursing action is most appropriate?
Genetic information describing the characteristics of an organism is found in which of the following?
Which of the following is a triplet of nitrogenous bases that codes for an amino acid?
Which of the following is a triplet of nitrogenous bases that codes for an amino acid?
If GGA TAC ATA is used as a DNA template for RNA transcription, what is the correct complementary RNA codon sequence?