What is the function of the structural elements of a virus?
a. To provide a source of energy for the virus
b. To package and protect the viral genome
c. To use all of the cell proteins
Ans: b. To package and protect the viral genome
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Simple sugars like glucose can be detected and measured using orcinol
a. True b. False
A dicentric chromosome has two
A) arms. B) centromeres. C) telomeres. D) mutations. E) centrosomes.
During gamete production, the genetic information within the cells is duplicated and exchanged prior to forming the gamete cells. What is the benefit to the species to have this genetic exchange?
A) Genetic exchange increases variation among offspring. B) The organisms created from this genetic exchange will be identical to one of the parents that participates in reproduction. C) The DNA produced as a result of genetic exchange will have identical copies of the same genes, increasing the likelihood that more offspring will be produced. D) The genetic information exchanged is the cause of mutations, which are always necessary for the species' survival.
Which possible use of reproductive cloning is still considered by most to be an unresolved ethical issue?
A) the production of genetically identical animals for experimentation B) cloning mammals for the production of potentially valuable drugs C) the production of organs in cloned pigs for transplant into humans D) the reproductive cloning of humans