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DAT BOOSTER 2 EXAM 1:BIOLOGY CONCEPTS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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DAT BOOSTER 2 EXAM 1:BIOLOGY CONCEPTS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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DAT BOOSTER 2 EXAM 1:BIOLOGYCONCEPTS QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
Valves in the body - ANSWER LAB RAT
Left atrium=Bicuspid (Mitral Valve)
Right atrium= Tricuspid
Pulmonary Semilunar Valve
Aortic Semilunar Valve
Pyloric Valve= splits he stomach and the small intestine
Ileocecal Valve= Separates the large and small intestine
Golgi apperatus - ANSWER Helps in post transnational modification such as phosphorylation, sulfanation
(strengthening the strength within different proteins) and glycosylation (which can help protein fold and
improve the protein strength)
Klinefelter Syndrome - ANSWER -XXY
- Male with female characteristics (such as breast enlargements and little facial hair)
-If nondisjunction occurred at meiosis II (the egg in nondisjunction during meiosis 2) the egg has an XX
genotype; once a Y genotype sperm fertilizes the egg, the resulting gamete will have a genotype of XXY.
-If nondisjunction occurred at meiosis I (sperm in nondisjunction during meiosis 1) it would have an XY
chromosome configuration, once an X genotype sperm fertilizes the egg, the resulting gamete will have a
genotype of XXY.
-47 chromosomes (normal is 46)
-sterile male
Down syndrome - ANSWER -Non distinction at chromosome 21 (Trisomy 21)
-Mild retardation and distinct facial features
, Turners Syndrome - ANSWER -XO
-45 chromosome(normal 46)
-Kidneys may not properly function at birth and may have mild retardation
Thyroid Hormones - ANSWER Anterior Petiutary-TSH =>Thyroid=> T3/ T4/ Calcitonin
-T4 (In active form- in circulation) PROHORMONE
-T3 (Active Form)
*Derived from Tyrone and increase the BMR and help with neuronal developmnet in children
-Calcitonin= Decrease of blood Ca+2 by decreasing re-absorption of in the kidney
-Opposite of PTH
Ingestion of I-131 - ANSWER RADIOACTIVE
-determines thyroid acivity
Antibody - ANSWER -Y shape
-Immunoglobulin
-2 light and 2 heavy chain licked by disulfide bonds
-Come from plasma cells (B cell differentiate between Plasma cell and memory cells)
Arrangement in flagella vs Centrioles - ANSWER Flagella/cillia = "9+2"
Centrioles= "9+3"
*Both made out of Microtubules which are found in all Eukariotic cells
WBC - ANSWER -only about 1% of the blood
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