Part 1: Assignment #2 and #3 -Journal Bi-weekly activity ScienceDaily.com Throughout the semester, students will be instructed to post an article from ScienceDaily.com related to topics discussed in lecture. Students should come to class prepared to share their findings. Objective: Students increase their awareness of research in the field of […]

In the presence of high intracellular concentrations of tryptophan, only short transcripts of the trp operon are synthesized because of attenuation of transcription 5′ to the structural genes. This is mediated by the recognition of two Trp codons in the leader sequence. Explain what effect mutating these two codons to […]

Q. The cell walls of bacteria, fungi, and plant cells and the extracellular matrix of animal cells are all external to the plasma membrane. Which of the following is a characteristic of all of these extracellular structures? a. They are composed of the mixture of lipids and carbohydrates. b. They […]

In tomatoes, yellow fruit and dwarf vines are due to recessivealleles of genes which produce the more common red fruit and tallvine. Pollen from a pure line of dwarf plant bearingred fruit is placed on the pistil of a pure line tall plant bearingyellow fruit. What type of plant and […]