'Supercoiled dna' presentation slideshows

Chromosomes: Structure and Function

Chromosomes: Structure and Function. MOLECULAR GENETICS (856). Chromosomes. Transmission Expression of genetic information. A centromere, which is most evident at metaphase, where it is the narrowest part of the chromosome and the region at which spindle fibers attach.

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EXPERIMENT OBJECTIVE:

EXPERIMENT OBJECTIVE:. The objective of this experiment is to develop an understanding of DNA mapping by determining restriction enzyme cleavage sites on a circular DNA plasmid. BRIEF DESCRIPTION OF EXPERIMENT:.

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Tertiary Structure: Supercoiled DNA

Tertiary Structure: Supercoiled DNA. L = T + W L = Linkage Number number of crossings in planar projection T = Topological winding number- (e.g, number of bp/ 10.5 for B-DNA) W = Writhing number- number of turns the duplex axis makes around itself

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Nitrogenous bases

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MBB 407/511 Lecture 21: Eukaryotic DNA Replication

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All living things have a genetic molecule

All living things have a genetic molecule. In prokaryotes and eukaryotes: DNA Even in viruses, genetic material is DNA or RNA Directs day to day operations of the cell Provides instructions for making a new individual passed on to daughter cells during cell division

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Lecture 2 Properties of DNA

Lecture 2 Properties of DNA. Reference: Chapter 28: Biochemistry by Voet and Voet. Lecture 2: Outline. C-value paradox Gene size, genome size Topology of DNA Denaturation and renaturation of DNA. gene sizes. Largest known mammalian gene is DMD gene 2.5 Mbp (0.1% of the genome)

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KEY CONCEPT Cells divide during mitosis and cytokinesis.

KEY CONCEPT Cells divide during mitosis and cytokinesis. DNA and histones. Supercoiled DNA. DNA double helix. Chromatin. Chromosomes condense at the start of mitosis. DNA wraps around proteins (histones) that condense it. chromatid. telomere. centromere. telomere.

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