The sugar in DNA is deoxyribose while the sugar in RNA is ribose.
Answer the following statement true (T) or false (F)
True
DNA stands for deoxyribonucleic acid while RNA stands for ribonucleic acid.
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Why is it a good strategy for a microbe to adhere to a receptor that plays a critical function for a host cell?
A. It ISN'T a good strategy-host cells could shift to a backup receptor and shut down production of the main receptor, preventing infection. B. If it's a receptor the cell MUST use, it doesn't have a backup system in place to switch to-so, even though it makes it susceptible to infection, it HAS to put that target out there. This benefits the microbe. C. Microbes need to evade detection and elimination by the immune system-if they adhere to a receptor that plays a critical function, they are less likely to trigger destructive immune responses. This would be similar to using a hostage as a shield in a police-standoff situation. D. It ISN'T a good strategy-by binding to receptors, microbes will be phagocytosed by cells and destroyed within them.
The scientific name of humans is Homo sapiens. What is the species of humans?
A. Homo B. sapiens C. Homo sapiens D. Animalia E. Eukarya
Alkalinophiles can survive in water up to pH (11.5/10/7.0)
What will be an ideal response?
Which of the following best describes the function of the RecA protein in E. coli recombination?
A. Promotes strand invasion and formation of the D loop B. Recognizes double-stranded breaks in the DNA C. Is involved in the initial formation of the Holliday junctions D. Resolves Holliday junctions into separate chromosomes