Which of the following is unlikely to trigger degradation of a eukaryotic mRNA in the nucleus?
a. aberrant splicing
b. presence of a nonsense codon
c. lack of splicing
d. misfolding of the mRNA
e. lack of a poly(A) tail
Ans: b
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Which one of the following is the most common energy "currency" for a cell?
A. ATP B. DNA C. glucose D. protein E. NADH
Answer the following statements true (T) or false (F)
1. Cellulose in the cell wall is a primary energy store for plants. 2. If a drug blocked the activity of an integrin, that cell would not be able to respond to changes in the ECM. 3. Unlike animals, plants lack a cell junction where small molecules can move from one cell to another cell. 4. The heart, skeletal muscles, and blood vessels all contain muscle tissue.
Reduction is the addition of ________, which usually is accompanied by addition of protons in a process called ________ in biological systems
Fill in the blank with correct word.
________ are nonviral genetic elements that have reverse transcriptase activity
Fill in the blank with correct word.