Biology 1201A Lecture Notes - Lecture 2: Ploidy, Genome Size, Dna Replication

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In the last topic, we looked at how division and checkpoints ensure that eugenic material gets faithfully passed on to daughter cells. If we look to the future of this course, however, we"ll need to understand how variation is generated, as this is a major requirement for evolution. This topic, generating diversity", will explore different mechanisms" and origins for the generation of variation in a genome. Start exploration of genetic diversity by considering genome structure: what is a genome, c values, ploidy, genome composition. Rank following organism in order from least to most dna in their cells rice has the most dna compared to fruit y, e coli, and protist. In order from least to most number of genes? rice has the most genes. Genome: amount of dna in a complete set of chromosomes. Genomes size (c-value): characterizes a species; amount of. Dna in one genome (haploid set unreplicated) (i. e. one complete set of chromosomes) table 15. 1.

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