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...

Gametes are formed within the gonads (testis and ovaries) and the tissue that directly creates the gametes is generically called: germ line Name two tissue types/organs formed by the endoderm digestive tube, respiratory tube Name two tissue types/organs formed by the ectoderm skin cells, CNS Name two tissue types/organs formed by the mesoderm Red blood cells, organs Exogenous agents that cause disruptions during development resulting in the formation of congenital defects teratogens Th...

MBIO 3410 Exam Questions With 100% Correct Detailed Answers Guaranteed Pass Latest Updated Rated A+ Watson-Crick base pairs - Answer-Cytosine and Guanine (3-H bonds) Adenine and Thymine/Uracil (2-H bonds) /.DNA forms - Answer-A and B DNA (right-handed), Z DNA (left-handed, dehydration) /.major and minor grooves - Answer-Empty spaces in the 3-D structure of the double helix. Common location of protein binding. /.plectonemic - Answer-Refers to a helix whose strands can only be separ...

Which of the following is consistent with the Central Dogma of Molecular Biology? - answer-DNA -> RNA -> protein All of the following terms could be used to classify the chemical properties of some of the 20 different amino acids EXCEPT: - answer-Purine Match the descriptions of bonds with the the single best answer. Note: not all bond names will be used, and some may be used more than once. - answer-Connects the nucleobase to the ribose sugar - N Glycosidic Bond Supports DNA secon...

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...

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...

BTEC 3302 Exam 3 Questions and Answers Already Passed 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 - Answers 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 repress...