Outline the series of steps that transfers genetic information from the linear sequence of nucleotides in a DNA
molecule into the linear sequence of amino acids in a protein. What will be an ideal response?
ANSWER: During the first step the information encoded in a gene is copied into an RNA molecule
known as pre-messenger RNA (pre-mRNA). This step is called transcription and takes place
in the nucleus. Next, the pre-mRNA is then processed into a finished messenger RNA
(mRNA) that moves through a nuclear pore into the cytoplasm. Here, during the third step
called translation, the information encoded in the mRNA is converted into the sequence of
amino acids in a polypeptide chain, which is processed and folded to form a protein.
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A male is heterozygous for the trait that produces freckles on the skin, and he has freckles. If he marries a woman who is also heterozygous for freckles, ______ percent of their children are predicted to be freckled. Also, of all their children, ______ percent are predicted to be heterozygous. rev:
A. 100%, 100% B. 75%, 50% C. 75%, 25% D. 50%, 50% E. 100%, 75%
Some microorganisms are useful in bioremediation processes that reduce the effects of pollution.
Answer the following statement true (T) or false (F)
If a particular protein were being produced in excess of the cell's needs, then __________ mechanisms
intervene to stop production. a. metabolic b. homeostatic c. growth d. respiratory e. anabolic
________ is a single-celled fungus that produces yeast infections
Fill in the blank(s) with correct word