In humans, how many different kinds of gametes can be produced due to independent assortment only?
A. 246
B. 234
C. 462
D. 232
E. 223
Answer: E
You might also like to view...
Specific proteins produced by cells of the immune system in response to the presence of foreign molecules that circulate in the serum and are present in secretions such as saliva are called:
a. antigens. b. immunoglobulins. c. cytokines. d. phagogens.
What is the major gas released into the environment when organic material is burned?
a. O2 b. CO2 c. N2 d. H2 e. Cl2
Which of the following series of events is associated with the formation of cancer?
A. The oncogenes mutate and become proto-oncogenes which are continuously active. There is also an associated loss of tumor suppressor gene activity allowing uncontrolled growth of cells. B. The proto-oncogenes mutate and become oncogenes which are continuously active. There is also an associated loss of tumor suppressor gene activity allowing uncontrolled growth of cells. C. The proto-oncogenes mutate and become oncogenes which stop functioning altogether. There is also an associated increase in the tumor suppressor gene activity allowing uncontrolled growth of cells. D. The oncogenes mutate and become proto-oncogenes which stop functioning altogether. There is also an associated increase in the tumor suppressor gene activity allowing uncontrolled growth of cells.
Miller's apparatus was designed to
A. simulate the conditions of early Earth. B. prove how complex organic molecules originated. C. support the theory of biogenesis. D. demonstrate how the first cells originated.