Study guides, Class notes & Summaries

What are the purines and pyrimidines? - Answer-purines: adenine, guanine pyrimidines: cytosine, uracil, thymine What are some examples of the cause of mutations in DNA? - Answer-cellular metabolism, UV light exposure, ionizing radiation, chemical exposure, replication errors What happens when the DNA is damaged/a mutation occurs? - Answer-cell cycle checkpoint activation, transcriptional program activation, DNA repair, apoptosis What is the definition of a gene? - Answer-A segment of D...

What composes blood? red cells, white cells, platelets, plasma What is the ratio of red blood cells to white blood cells in the bloodstream? white blood cells (leukocytes, monocytes, lymphocytes, neutrophils, basophils, and eosinophils) are generally present at about 1/700th the number of erythrocytes What are the different formed elements of blood, and how can they and their subtypes be distinguished? -red blood cells (erythrocytes): carry oxygen to cell via hemoglobin -white blood cells ...

what are the four major iselet cell types and their functions? - Answer-- beta cells = secrete insulin (60%) - alpha cells = secrete glucagon (30%) - delta cells = secrete somatostatin (10%) - pancreatic polypeptide secreting cell (1%) what is the effect of alpha cells (glucagon) on other islet cells? - Answer-it stimulates beta cells (insulin) and delta cells (somatostatin) what is the effect of delta cells (somatostatin) on other islet cells? - Answer-it inhibits beta cells (ins...

acrocentric Refers to the terminal location of the centromere on chromosomes 13, 14, 15, 21 and 22 allelic heterogeneity the situation in which multiple alleles at a singe locus can produce one or more disease phenotypes amorphic Refers to mutations that cause a complete loss of function for the respective gene, and therefore yield the same phenotype as a complete gene deletion Aneuploidy denotes any unbalanced chromosome complement antimorphic Refers to mutations that when present in h...

Where are the adrenal glands located? (10/18) Adrenal glands are located at superior pole of each kidney What does the adrenal cortex and the adrenal medulla secrete? (10/18) The adrenal cortex secretes DHEA, mineralocorticoids (e.g., aldosteron) and glucocorticoids (eg, cortisol). The adrenal medulla secretes catecholamines (eg, epinephrine, norepinephrine, dopamine). What are 5 of the major disorders of the adrenal cortex? (10/18) 1. Hypercortisolism (Cushing syndrome) 2. Adrenal i...

PCOL 838 Exam 1 with 100% correct answers

PCOL 838 EXAM 1 with 100% correct answers

PCOL 838 FINAL with 100% correct answers

PCOL 838 Disorders of the Exocrine Pancreas.

PCOL 838b Exam 1 with 100% correct answers