Dna rep Study guides, Class notes & Summaries

Chapter 12 DNA Replication and Recombination

USLME Biochem - First Aid Exam Questions With Accurate Answers. Chromatin structure - answerDNA exists in condensed chromatin form in order to fit in nucleus Negatively charged DNA loops twice around positively charged histone octamer (2 sets of H2A, H2B, H3 and H4) to form nucleosome "bead" Octomer subunits consist primarily of lysine and arginine amino acids (positively charged). H1 ties nucleosome beads together in a string Heterochromatin - answerCondensed, transciptionally inactiv...

Biochem Exam 3- Lecture 12: Molecular Endocrinology, DNA replication and Transcription with 100% correct answers | verified | latest update 2024

Cancer progression - The advancement of cancer due to genetic or epigenetic alterations in tumor cells, involving a complex interplay between tumor cells, surrounding non-neoplastic cells, and the extracellular matrix. Oncogenes - Mutated cellular proto-oncogenes that cause hyper-activation of signaling pathways, contributing to cancer progression by changing the tumor microenvironment, angiogenesis, and inflammation. Tumor suppressors - Genes that, when inactivated, eliminate negative reg...

D1.1 DNA Replication exam questions with 100% correct answers(graded A+).

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SimUText DNA Replication Exam (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A+ in a nucleotide, what is attached to the 3' carbon in deoxyribose? hydroxyl group (OH) to which carbon in deoxyribose is the phosphate group attached? 5' what does it mean to say that polymerization proceeds 5' -> 3'? DNA polymerase always adds nucleotides onto the 3' end of a DNA strand deoxynucleoside triphosphates (dNTP) Free nucleotides with three phosphate groups Br...

Pyrimidine - One carbon ring Cytosine, Thymine, Uracil Purine - Two carbon rings Adenine, Guanine How are nucleotides joined together? - Condensation to form phosphodiester bond What is the function of mRNA? - Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? - Carries aa to ribosome Anticodon pairs with codon on mRNA strand What is the function of rRNA? - part of ribosome structure most abundant RNA coordinated coupling of tRNA to mRNA...

cell cycle - includes DNA replication, cell growth, and mitosis - results in two daughter cells that are genetically equivalent to the origional parent cell mitosis - phase of cell cycle when eukaryotic cells divide into two genetically equivalent daughter cells - usually how cells divide daughter cells - during mitosis a single parent cell splits into two daughter cells - are genetically equivalent, unles DNA copying errors occur during mitosis four basic steps of DNA replication - p1: I...

D1.1 DNA Replication exam questions with 100% correct answers(graded A+).