Barr body Study guides, Class notes & Summaries

What is the reason that closely linked genes are typically inherited together? - ANSWER The likelihood of a crossover event between these two genes is low All female mammals have one active X chromosome per cell instead of two. What causes this? - ANSWER Activation of the XIST gene on the X chromosome that will become the Barr body In his transformation experiments, what did Griffith observe? - ANSWER Mixing a heat-killing pathogenic strain of bacteria with a living nonpathogenic strain ca...

Pyrimidine dimers formed in DNA due to UV radiation can be repaired by? SOS repair Double strand break repair Mismatch repair Photoreactivation repair (nucleotide excision repair) Base excision repair - CORRECT ANSWER Photoreactivation repair (nucleotide excision repair) Which of the following repair mechanisms uses methyl groups to distinguish between parental and daughter strands? Answers: Mismatch repair Photoreactivation repair (Nucleotide excision repair) SOS repair Doubl...

BMTCN Chapter 7 Survivorship IssuesWhat is a patient who received a T-cell-depleted transplant at risk for developing within the first year following transplant? A. Acute myeloid leukemia B. Breast cancer C. Basal cell carcinoma D. Post-transplant lymphoproliferative disorders - correct answer D. Post-transplant lymphoproliferative disorders What is the most common secondary malignancy in pediatric patients who receive radiation as part of the transplant conditioning regimen? A. Esop...

Hematopoiesis -ANSWER process of blood formation Plasma -ANSWER liquid protein Thrombocytes -ANSWER platelets Leukocytes -ANSWER white blood cells Erythrocytes -ANSWER red blood cells Hemoglobin -ANSWER binds to oxygen, giving blood its red color; oxygen carrying component Hematocrit -ANSWER refers to how much of the blood volume comprises erythrocytes Thromboplastin -ANSWER a plasma protein aiding blood coagulation through catalyzing the conversion of prothrombin to thrombi...

AP Biology Practice Exam Questions and Answers yes is testosterone lipid soluble testosterone readily passes through the cell membrane and binds to a receptor in the cytoplasm. the hormone and receptor then enter the nucleus and act as a transcription factot voltage-gated calcium channels in the membrane open what is a direct result of depolarizing presynaptic membrane of an axon oxygen gas in photosynthesis, atom goes from water to pump whenever this term is used, acti...

What is the reason that closely linked genes are typically inherited together? - ANSWER the likelihood of a crossover event between these two genes is low All female mammals have one active X chromosome per cell instead of two. What causes this? - ANSWER activation of the XIST gene on the X chromosome that will become the Barr body In his transformation experiments, what did Griffith observe? - ANSWER Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can...

Pediatric Cancer NCLEX Questions "The mother of a child diagnosed with a potentially life-threatening form of cancer says to the nurse, ""I don't understand how this could happen to us. We have been so careful to make sure our child is healthy."" Which response by the nurse is most appropriate? "A. ""This must be a difficult time for you and your family. Would you like to talk about how you are feeling?"" B. ""Why do you say that? Do you think that you could have prevented ...

Exam 2 Genetics Chapter 7  Nondisjunction in meiosis – can cause XXX Syndrome or XYY Condition  47 XYY – famous o There’s this idea that there is an over representation of XYY of men in prison o Some people think that people with XYY are more likely to become criminals or get put in jail o Above average in height and below average in intelligence  Sex determination o At 5 or 6 weeks there is a potential for the fetus to get a Y chromosome and become a male  PAR: pseu...

BMTCN Chapter 7 Surivorship IssuesWhat is a patient who received a T-cell-depleted transplant at risk for developing within the first year following transplant? A. Acute myeloid leukemia B. Breast cancer C. Basal cell carcinoma D. Post-transplant lymphoproliferative disorders - correct answer D. Post-transplant lymphoproliferative disorders What is the most common secondary malignancy in pediatric patients who receive radiation as part of the transplant conditioning regimen? A. Esoph...

Nursing 620 Exam 1 100% Correct 2023. Dry Eye - Is a common syndrome affecting mostly those > 40 yo More prevalent in Hispanics and Asians Affects both eyes - usually How do patients describe Dry Eye? - Feels like sand in the eye Eyes feel hot Irritated and red Burning Itching Excessive tearing Photophobia Is worse in smoky and dry environments Dry Eye occurs as a result of: - 1) Mechanical Abnormality such as eye ball protrusion, eyelid abnormalities and misuse of contact lense...