Dna compaction - Study guides, Class notes & Summaries

BIO 1406 - lab exam 3 questions and answers already passed Mitosis division of a cell nucleus in which the chromosomes number stays the same Mitosis purpose increase cell number during growth, development and repair Cytokinesis division of cytoplasm sister chromatids duplicates of an original chromosome centromere region whats holding chromatids together spindle football shaped structure composed of microtubules. involved in moving chromosomes during cell division centri...

Molecular Diagnostics Chapter 7 100% Solved How many base pairs are in the human genome? - answer2.9 billion What is the difference between a mutation and a polymorphism? - answermutations are reserved for rare changes in DNA like those found in cancer. Polymorphisms are variants that occur in 1-2% of the population and do not affect phenotype heavily What are the three largest and smallest chromosomes? - answerlargest: 1, 2 3 smallest: 22, Y, 19 What is an example of a balanced polymor...

Molecular Diagnostics Chapter 7 Exam with verified solutions How many base pairs are in the human genome? - answer2.9 billion What is the difference between a mutation and a polymorphism? - answermutations are reserved for rare changes in DNA like those found in cancer. Polymorphisms are variants that occur in 1-2% of the population and do not affect phenotype heavily What are the three largest and smallest chromosomes? - answerlargest: 1, 2 3 smallest: 22, Y, 19 What is an example of a...

Overall organizational structure of the human chromosome correct answers normally contain a single, immensely long DNA double helix; to avoid tangling and to manage the long chain efficiently they are complexed with various proteins and sometimes noncoding RNAs to form chromatin that undergoes different levels of coiling and compaction Chromatin correct answers the structure of DNA complexes with proteins that are coiled and compacted - the double helix is wound around positively charged his...

What are the necessary requirements for high levels of transcription for the lac operon? High Lactose, low glucose, low cAMP Low Lactose, high glucose, high cAMP High Lactose, low glucose, high cAMP High Lactose, high glucose, low cAMP - Answer- High Lactose, low glucose, high cAMP Which of the following statements is/are correct regarding the 10 promoter from bacteriophage T7? When IPTG is added, it inhibits the lac repressor In the absence of IPTG, the lac repressor repres...

MBG 1000 Practice Exam 37 Questions with Verified Answers Somatic human cells contain: a) 2 pairs of sex chromosomes b) 46 pairs of chromosomes c) 46 chromosomes d) 46 autosomes e) none - CORRECT ANSWER C Which of the following in incorrect: a) a given human somatic cell only has 2 alleles for a given gene b) different alleles of a specific gene often arise through mutation of one of the gene copies c) the alleles of a gene are found at different loci on the 2 copies of the same au...

1. The most precise modern definition of a gene is a segment of genetic material that: A) codes for one polypeptide. B) codes for one polypeptide or RNA product. C) determines one phenotype. D) determines one trait. E) that codes for one protein. B. codes for one polypeptide or RNA product 2. The DNA in a bacterial (prokaryotic) chromosome is best described as: A) a single circular double-helical molecule. B) a single linear double-helical molecule. C) a single linear single-...

PEBC EVALUATION ALL IN ONE QUESTIONS WITH ANSWERS 1. Which is not a fiber? Options were Starch, pectin lignin etc 2. Capsule lock name was given. Why is this technology employed? Ans is To prevent dose tampering 3. Smoking inhibits what? Ans is polycyclic aromatic hydrocarbons 4. Statin and Erythromycin interaction cause? Ans is Increased level of statins 5. Which of the following is an example of public funded and privately delivered? Options were several cases 6. Which of this is not a ...

BCH 361 EXAM 2 QUESTIONS WITH ALL VERIFIED ANSWERS The DNA in each human cell if connected and fully extended will be meters long. - Answer-2 Supercoiling accounts for some of the compaction of the DNA, but further compaction occurs by to the DNA. - Answer-binding certain proteins chromatin - Answer-is the entire complement of a cell's DNA and its associated proteins. histones - Answer-are highly basic proteins that are components of chromatin. Histones (an octamer that contains two...

GCD Exam 2 Practice Test Comp 86 Questions (chp 9-13) with Verified Answers Which of the following could be the components of a single nucleotide found in DNA? a. Ribose, phosphate, and cytosine b. Deoxyribose, phosphate, and uracil c. Deoxyribose, phosphate, and adenine d. Ribose, phosphate, and uracil - CORRECT ANSWER c. Deoxyribose, phosphate, and adenine 2. Which of the following is NOT a feature of the DNA double helix? a. It obeys the AG/TC rule. b. There are 10 nucleotides...