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genetic and genomic in nursing Exam Qs & As| Pass Guaranteed
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genetic and genomic in nursing ExamQs & As| Pass Guaranteed
Wild type - ✔✔most common phenotype in a natural population
estimate of human genes - ✔✔20,000
the HFE gene locus is 6p21 - ✔✔the HFE gene alleles are located on short arms of
chromosome number 6
Complementary base that has tightest association - ✔✔Cytosine and guanine
What condition are genotype and phenotype the same? - ✔✔Homozygosity of alleles
Child born to a mother with B/O blood and father for A/B -- chance of expression? - ✔✔25% A,
50% B, 0% O, 25% AB
Nonsense mutation - ✔✔mutation that changes a codon specifying an amino acid into a stop codon
CAT in DNA is represented as ___ in mRNA and ____ in tRNA - ✔✔CAU, GUA
Relationship among genes, DNA and proteins - ✔✔A gene is a section of DNA that provides
the directions for synthesizing a specific protein
, Function of RNA in protein synthesis? - ✔✔Serves as the coordinator mechanism to allow
proper reading of the mRNA and placement of the correct amino acid in the sequence by the tRNAs
Needed for DNA transcription includes: - ✔✔Nucleotides, DNA, and enzymes
central dogma of protein synthesis can be summed up as: - ✔✔DNA-transcription-RNA-
translation-protein
Suppressor gene function: - ✔✔to ensure cell division occurs only when it is needed
Cyclins influence the process of cell division - ✔✔by opposing tumor suppressor gene produce
and promoting cell division
How many mature ovum result from oogenesis? - ✔✔One
normal cell division process for meiosis for gametogenesis is: - ✔✔a single round of DNA
synthesis followed by two seperate rounds of meiotic cell division
What occurs during mitosis? - ✔✔Daughter cells are produced that are genetically identical to
the parent cell
How is apoptosis related to physiologic homeostasis? - ✔✔The efficiency of organ/tissue occurs
more rapidly after cell damage
Tumor suppressor genes - ✔✔Rb, p53, BRCA1 and 2
Oogenesis - ✔✔begins at fetal life, results in one mature ovum, and mature ova does not
complete meiosis II
why p53 gene is so important? - ✔✔Cell division is stopped
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