Isolation of dna - Study guides, Class notes & Summaries

3 transfers of DNA - Transformation: bacteria takes up naked DNA Transduction: a virus transfers the genes Conjugation: a hollow tube, or pilus transfers genes between organisms A population has 700 individuals, 85 of genotype AA, 320 of genotype Aa, and 295 of genotype aa. What are the allele frequencies of A (p) and a (q)? A. p = 0.58, q = 0.42 B. p = 0.35, q = 0.65 C. p = 0.65, q = 0.35 D. p = 0.50, q = 0.50 - Total number of alleles = 700 x 2 = 1400 p = ((85x2)+320)/1400 = 0.35 q ...

karyotyping - number and type of chromosome present Barr body - -condensed inactive X chromosome near nucleus of cell -all females have 1 Barr body nondisjunction - failure of chromosomes to separate during meiosis autosomal nondisjunction - -failure of chromosomes (other than sex chromosomes) to separate during meiosis -exs: trisomy 21, trisomy 18 translocation - portion of one chromosome is transferred to another (usually nonhomologous) abnormal egg (XX) x normal sperm (X) - -...

What are the the 2 recommended anticoagulants for Plasma or Bone Marrow Aspirate Samples EDTA and ACD Why is EDTA one of the recommended coagulants for Plasma or Bone marrow aspirate samples 1)A chelating (binding) agent for divalent cations such as Mg++ or Ca++ 2)Helps deactivate metal-dependent enzymes 3)Suppresses damage to DNA and proteins by deoxyribonucleases 4)Allows DNA to remain in native state and large molecular size before extraction What does EDTA stand for? ethy...

NIU Bios 209 Final Exam-King Questions with Verified Solutions **Biology and Ecology** What term describes the characteristics of a system that arise from the interactions among its components, but cannot be predicted by studying the components in isolation? Emergent properties. What is a continuous piece of DNA within a cell called, which can exist as a line or loop/circle? A. Mitochondrial DNA B. Chromosome C. Nucleotide D. Gene E. DNA helix B. Chromosome Defin...

Darwin’s theory of evolution is a strong theory, but at the time of proposing the theory, some aspects were yet to be explained. Which of the following things below did Darwin understand and incorporate into his theory? a. That inherited variations could increase an organism's ability to survive and reproduce b. How chromosomes were inherited c. That genetic mutation could be responsible for making new alleles d. That genes were the templates for making proteins a. That inherited varia...

BIO 202 Exam 1 Questions With 100% Correct Answers Updated 2024/2025 (Graded A+) When was earth formed? - correct answer 4.55 billion years ago When did life on earth first appear? - correct answer 3.5 billion years ago What are the evolutionary mechanisms? - correct answer *Nonrandom mating *Migration *Genetic drift *Natural selection When does allopatric speciation occur? - correct answer when members of the same species become geographically separated When does sympatric speciation oc...

MB (ASCP) 2022 Already Passed Consider the table below where a child and a possible father (PF) share the listed paternity indices for each locus listed (LOC-A1, LOC-B2, LOC-C3, LOC-D4). Locus Tested PF Child Paternity Index LOC-A1 3 2/3 2.18 LOC-B2 7/5 5 0.798 LOC-C3 15/17 9/17 5.21 LOC-D4 12 12 1.37 Based on the data presented in the table, what is the combined paternity index, CPI, from the loci tested: LOC-A1, LOC-B2, LOC-C3 and LOC-D4? 12.42 9.558 15.56 2.38 12.42 ( CPI is calculated by mu...

MD Exam 2 Test Questions With Revised Correct Answers <Guarantee Pass> Why do we wash the DNA on the purification column? To remove impurities from the DNA Which of the following is important when collecting a sample for molecular analysis? Choose all that apply. Clean, sterile container Sterile blood collection tube with an appropriate anti- coagulant Sterile swab with the appropriate collection media Precipitated RNA can be eluted from the column and stored in: Nuclease...

karyotyping - number and type of chromosome present Barr body - -condensed inactive X chromosome near nucleus of cell -all females have 1 Barr body nondisjunction - failure of chromosomes to separate during meiosis autosomal nondisjunction - -failure of chromosomes (other than sex chromosomes) to separate during meiosis -exs: trisomy 21, trisomy 18 translocation - portion of one chromosome is transferred to another (usually nonhomologous) abnormal egg (XX) x normal sperm (X) - -zygote: X...

BIO 202 Exam 1 Questions With Correct Answers Updated 2024/2025 Graded A+ | Verified Answers. What are the properties of life? - correct answer *Cells and organization *Energy use and metabolism *Environmental response *Regulation and homeostasis *Growth and development *Reproduction *Biological evolution When was earth formed? - correct answer 4.55 billion years ago When did life on earth first appear? - correct answer 3.5 billion years ago What are the evolutionary mechanisms? - corre...