Which of the following is part of the maturation of a eukaryotic mRNA?
1.removal of introns
2.the linking of exons
3.addition of the 5‘ cap
4.addition of the poly A tail
5.All of the options are correct.
5
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MOST microbiology research laboratories maintain BSL-2 standards
Indicate whether the statement is true or false.
Janey has been taking antibiotics for 10 days to counter a urinary tract infection caused by E. coli. Her UTI is eliminated, but two weeks later she has a vaginal itch. What is the likely cause?
A. Clostridium difficile B. Escherichia coli C. Lactobacillus acidophilus D. Staphylococcus aureus E. Candida albicans
The enzyme lipoprotein lipase ____
a. decreases in concentration with exercise b. allows muscles to releases fatty acids c. decrease the risk of cardiovascular disease d. results in lower levels of HDL e. has no overall impact on health
The genetic code, which specifies the three-letter codons that specify particular amino acids, is said to be redundant because ________
A) amino acid sequences are produced by different alleles B) it is observed in virtually all know organisms C) one codon can code for more than one amino acid D) phenotypic variation is observed depending on the codon usage E) some amino acids are coded for by more than one codon