The fertilized egg is totipotent, which means:
A. it only contains genetic material from the
female.
B. it forms the membranes that surround and
support the developing embryo.
C. it can give rise to a complete organism.
D. the Y chromosome does not create
interference to the expression of X-linked
genes.
E. it can be removed and donated to a
surrogate womb.
C
You might also like to view...
Which of the following is not true of topoisomerase inhibitors?
A. They are effective against cancer cells and are currently used in chemotherapies against colorectal and ovarian cancer. B. They are effective against bacterial infections such as infections by the bacteria that cause anthrax. C. They are highly specific so there is negligible general toxicity and usually no unpleasant side effects associated with anticancer therapies that target topoisomerases. D. The anticancer agents that target topoisomerases generally increase the levels of DNA damage in targeted, rapidly growing tumor cells. E. They inhibit topoisomerases by trapping the topoisomerase-DNA complex in which the DNA is normally cleaved, preventing religation.
Somatic cell nuclear transfer
a. uses differentiated cells. b. uses stem cells. c. produces human embryos for research d. is used to breed livestock e. does all of these.
Transmission of Plasmodium spp. (malaria) through a mosquito bite is an example of vehicle transmission.
a. true b. false
Multicellular organisms probably arose first about 1 billion years ago, resulting in a burst of diversification of organisms and their movement onto land.
a. true b. false