What is the probable origin of members of the Alu family of repetitive sequences in the human genome?
What will be an ideal response?
Ans: Alu sequences are homologous to genes for 7SL RNA, which are transcribed by RNA polymerase III. This RNA functions as part of the signal recognition particle (SRP).
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Differentiate between basic and applied research and discuss how the two are linked in terms of genetics
What will be an ideal response?
Enzymes _____
a. are proteins, except for a few RNAs b. lower the activiation energy of a reaction c. are changed by the reactions they catalyze d. are proteins, except for a few RNAs and lower the activation energy of a reaction
Most of the energy used by the cell is converted to ATP in ________
A) mitochondria B) nuclei C) Golgi complexes D) lysosomes
Which of the following statements regarding mycoplasmas is FALSE?
A) They are low G + C content bacteria. B) They stain Gram positive. C) They are pleomorphic. D) They exhibit a "fried egg" appearance on solid media. E) They are the smallest free-living cells.