If a diploid organism has a genome consisting of 4
pairs of chromosomes, it can produce __________
different combinations of maternal and paternal
chromosomes (disregarding crossing over).
a. 4
b. 8
c. 12
d. 16
e 32
Answer: d
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The rusts of grain crops are good examples of ________.
A. basidiomycetes B. zygomycetes C. ascomycetes D. Rusts fall in several different fungal groupings.
Where are sugars formed in the chloroplasts?
a. on the outer membrane b. on the inner membrane c. in the thylakoid compartment d. in the stroma e. within the thylakoid membrane
Which of the following statements is INCORRECT?
a. Langerhans cells activate the immune system. b. Tactile cells anchor the skin to the body. c. Keratinocytes produce a fibrous protein to protect the epidermis. d. Melanin provides protection against ultraviolet (UV) radiation.
Spheroplast is derived by the removal of: