Which protist causes a sexually transmitted disease?
A) Pfiesteria B) Trichomonas C) Trypanosoma D) Plasmodium E) Giardia
B
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Intracytoplasmic sperm injection (ICSI) is used by couples in which the _____
a. female has blocked oviducts b. female has very irregular ovulation c. female is approaching menopause d. source of sperm is a sperm bank e. male is infertile
Every 24 hours, every genome in every cell of the human body is damaged 10,000 times or more
Given the possible DNA repair mechanisms, which order listed below would be most effective at repairing these as quickly as possible in order to prevent mutations from being carried forward in DNA replication? A. Proofreading by DNA polymerase, glycosylase enzyme activities, excision repair, SOS repair B. SOS repair, excision repair, glycosylase enzyme activities, proofreading by DNA polymerase C. SOS repair, proofreading by DNA polymerase, glycosylase enzyme activities, excision repair D. Glycosylase enzyme activities, SOS repair, proofreading by DNA polymerase, excision repair
In Prokaryotic vs. Eukaryotic genetics, all of the following statements are true EXCEPT:
A. Prokaryotes are haploid, and they contain a single circular chromosome B. Prokaryotes often contain small circular DNA molecules called "plasmids", that confer useful properties such as drug resistance C. Prokaryotes are haploid, and they contain an odd number of chromosomes D. In eukaryotes, transcription of genes in RNA occurs in the nucleus, and translation of that RNA into protein occurs in the cytoplasm. The two processes are separated from each other.
A diabetic friend of yours passes out shortly after taking her insulin injection. She regains consciousness and asks you to give her one of the glucose tablets she carries in her purse. Another friend steps in and says, "Wait! You shouldn't give sugar to
a diabetic!" Recalling what you learned about the endocrine system, you give your diabetic friend the glucose tablet she asked for. Why did you trust the request of your diabetic friend for the glucose tablet and not the other friend who thought he was being helpful (but wasn't)? What will be an ideal response?