Which of the following best describes the flow of information in cells?
a. Ribosomes make proteins by randomly linking amino acids together.
b. DNA acts as a messenger. It binds to a ribosome and provides instructions for making protein.
c. DNA is converted to RNA, which is then converted to protein.
d. mRNA is made by copying specific regions of DNA called genes. Ribosomes use mRNA as instructions, which provide a code specifying the order of amino acids in a protein.
Answer: d. mRNA is made by copying specific regions of DNA called genes. Ribosomes use mRNA as instructions, which provide a code specifying the order of amino acids in a protein.
You might also like to view...
A yogurt, which had "contains live cultures" on its label, was transferred onto an acidic carbohydrate-containing medium for selective enrichment. Eventually, isolates of the ________ genus were obtained
A) Lactobacillus B) Leuconostoc C) Peptococcus D) Streptococcus
A protein that can move protons and other ions across a cellular membrane is called a:
A. peristaltic pump B. proton pump C. osmotic pump D. transferase E. stile
The lacA gene found within the lac operon encodes for galactosidase transacetylase. This enzyme attaches a(n) ________ group to lactose and lactose analogs.
A. amino B. hydroxyl C. carbonyl D. acetyl E. carboxyl
What are the "work-bench" structures where cell proteins are assembled?
What will be an ideal response?