Induced mutation - Study guides, Class notes & Summaries

Stress response: Clinical Manifestations - Answer-- Increased HR - Narrowed pulse pressure - Altered breathing-- deep and quick - Fever (sepsis) - Decreased output-- hold on to as much water as you can - Altered LOC - Initial decrease in MAP will signal the heart to pump faster - Vasodilation aslo signals SNS activation - Dilation of pupils Anaplylactic - Answer-Inflammation --> swelling of tissues; decreased MAP --> fluid shifting to the interstitial space --> fluid ...

Mutations - Genetics 3333 Test Questions and Answers Spontaneous Mutations - Answer-- Mistakes during replication or recombination - Wrong nucleotide is inserted - Too many nucleotides are inserted or deleted Tautomeric Shift - Answer-Rearrangement of bonds in a base so that its H bonding potential changes Induced Mutations - Answer-A mutagen damages the DNA - Damage causes a base to change its H bonding - The mistake in base pairing is passed to progeny cells - Ex: UV light, Ionizi...

Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the following will lower the affinity of hemoglobin for oxygen? - ANSWERSIncrease in 2,3 bisphosphoglycerate (BPG) A decreased affinity will increase the rate of oxygen delivery to the tissues. This will occur when pH is low, there is an increase in CO2, protons or 2,3 BPG. The other scenarios (a, c, d) will all increase the affinity for O2. Which of the following proteins is likel...

Trinucleotide Repeat Expansion correct answer: Mutation that results in expansion of the number of trinucleotide repeats Trinucleotide Repeat (TNR) correct answer: Sequence of three nucleotides repeated several times in tandem Chromosomal Alteration correct answer: Mutation that involves >100 bp Spontaneous Mutation correct answer: A mutation that arises in the absence of a mutagenic agent. Unavoidable, happens in the natural process Hydrolysis correct answer: The process of...

activators - TFs that increase the levels of transcription initiation Adaptive mutations - evolutionary change and adaptation to new environments, stressful conditions darwins birbs AP - activator proteins ARE - AP2 response elements Base analogs (chem induced - 5-bromouracil resembles thymine, except that it has bromine atom in place of methyl on 5' C base excision repair (BER) - repairs damaged base by using AP endonuclease to cleave damage on 5' side and DNA polymerase add new base...

1. Which one among the following statements is FALSE about DNA? (A) Located in chromosomes (B) Carries genetic information from parent to offspring (C) Abundantly found in the cytosol (D) There is a precise correlation between amount of DNA and number of sets of chromosome per cell 2. Which one among the following acts as the inducer of lac operon? (A) Glucose (B) Fructose (C) Lactose (D) Galactose 3. Kary Mullis is associated with (A) RFLP (B) PCR (C) Phosphorylation reaction ...

spontaneous mutations mutations that arise without external influence - naturally occurring induced mutations mutations that are derived by exposure to mutagenic agents or procedures - occur at a much higher frequency than spontaneous somatic mutations mutations that occur in somatic cells - will not be passed on to next generation mosaic individual containing two or more types of cells that differ in their genetic composition - e.g. cancer chimera a single individual composed of two (or mor...

Cmmb403 midterm exam with 100% correct answers Holt-Oram - answer____ syndrome is a human disease w a developmental basis that causes forelimb and heart defects where radius is missing and theres a hole btw ventricles so oxygenated and deoxygenated blood mixes. It is caused by a mutation of ONE copy of the TBX5 gene that codes for a transcription factor TBX5 - answerthe transcription factor that is mutated in Holt-Oram syndrome - is expressed in the forelimb and the heart (NOT the hind li...

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...

BIO 315 Exam 1 Questions and Answers 100% Pass Humans have 23 pairs of chromosomes. Chromosomes 1-22 are best referred to as ______. a. Centromeres b. Autosomes c. Karyotype d. Nuclei e. Sex chromosomes - Correct Answer ️️ -B How many DNA molecules would be found in a single chromosome? a. 4 b. 10 c. More than 10 d. 1 e. 2 - Correct Answer ️️ -D An alternate form of a gene is called a(n) ________. a. Allele b. Exome c. Genome d. Chromosomes e. mutation - Correct Answer...