This pre-mRNA contains 8 exons and 7 introns. The splice sit…

This pre-mRNA contains 8 exons and 7 introns. The splice sites surrounding exon 4 are not readily recognized by the splicesome. In addition, a splicing repressor prevents the recognition of the 3′ splice site in exon 7. What exons will be present in the mature mRNA?  

Pick ONE Prompt: 1. Explain how a chromosomal mutation can b…

Pick ONE Prompt: 1. Explain how a chromosomal mutation can be evolutionarily beneficial in one context but detrimental in another. 2. Define nondisjunction and explain how meiosis I nondisjunction differs from meiosis II nondisjunction in terms of gamete outcomes.