The termination of translation occurs when a ribosome that is translating an mRNA encounters a stop codon. Since there are no tRNAs that can base pair with stop codons, the A-site of a ribosome that is positioned at a stop codon is able to bind a protein called release factor, […]

Heliconius melpomene is a species of butterfly with ZW sex determination. H. melpomene’s wing spots are normally orange, but a recessive Z-linked mutation causes the spots to be yellow, while a recessive autosomal mutation causes the spots to be red. Butterflies homozygous (or hemizygous) for both mutations have no wing […]

1. Why would a patient with gallstones be advised to eat a low-fat diet? 2. A search on the internet will likely indicate that the stomach is considered part of the upper gastrointestinal (GI) tract. But this is a classical view. In more modern terms, the stomach has properties it […]

Write an essay on DNA in forensic science. Integrate by discussion the properties of life, basic chemical terminology, and molecules and compounds of a cell necessary for life. Include the basic anatomy and physiology of a cell and describe how cell respiration, photosynthesis, and cell reproduction occur in a succinct […]