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1) How do Chromosomes at the end of telophase #1 differ from the chromosomes at the end of telophase in mitosis? 2) How do Chromosomes at the end of telophase #2 differ from the chromosomes at the end of telophase in mitosis? 3) Is the process of fertilization a form […]

Meiosis, the kind of cell reproduction in which parent cells pass genetic traits to their offspring, is typically an accurate process. Mistakes in the process, known as mutations, are rare, and not all mutations lead to changes in an organism. Some mutations, however, have significant negative effects. Genetic mutations during […]

1. You clone a double stranded DNA fragment from a pathogenic fungal stain. You suspect that the fragment contains a gene encoding a Seven Amino Acid Peptide. Here’s one of the DNA strand fragments: 5′ T G A G A T G C T T A G C T G […]

lex A is an E. coli gene whose product regulates the transcription of certain target genes that are located at different positions in the bacterial chromosome. Identified target genes appear to be involved in DNA repair and recombination. Under normal conditions, the LexA protein binds near and represses transcription of target genes; however, when […]