Ribozymes are ________.
A. catalysts for DNA splicing
B. catalysts for RNA splicing
C. unique to eukaryotes
D. ribosomes which catalyze reactions
E. unique to prokaryotes
Answer: B
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In the above figure, which letter points to the vas deferens?
A) A B) B C) C D) D E) E
Most genetic alterations performed by researchers aim to change the ____
a. genotype of the organism without a change in phenotype b. genotype of the organism, causing a change in phenotype c. phenotype of the organism without a change in genotype d. phenotype of the organism, causing a change in genotype e. proteome of the organism without a change in genotype
What is the most commonly employed form of birth control in the United States?
A. Sperm blockage with condoms B. Prevention of embryo implantation with IUD C. Prevention of ovulation by hormonal inhibition D. Abstinence E. Sterilization
What would happen in each of the following cases? Assume in each case that the protein involved is a soluble protein, not a membrane protein
A. You add a signal sequence (for the ER) to the N-terminal end of a normally cytosolic protein. B. You change the hydrophobic amino acids in an ER signal sequence into charged amino acids. C. You change the hydrophobic amino acids in an ER signal sequence into other hydrophobic amino acids. D. You move the N-terminal ER signal sequence to the C-terminal end of the protein.