The DNA molecule is most similar functionally to a
a. pair of scissors.
b. flashlight battery.
c. computer memory chip.
d. ballpoint pen.
e. craft kit of ceramic tiles.
Answer: c
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The formation of _____ depends on gene action, interactions within the embryo, interaction with other embryos that may be in the uterus, and interactions with the maternal environment
Fill in the blank(s) with correct word
Animals trapped and digested by "carnivorous" plants such as the cobra lily are used primarily as ____
a. an energy supplement during winter months b. a carbon source for the plant c. a nutrient supplement in nutrient-deficient environments d. food for bacteria and fungi that grow symbiotically with the plant roots e. an energy supplement for small plants growing in shady areas
Viruses attach to their hosts via ________.
A. carbohydrate attachments of the viral capsid B. viral flagella C. viral phospholipids D. host phospholipids E. host glycoproteins
HIV targets ______________ cells for infection
A. the helper T cells D. the red blood cells B. the cytotoxic T cells E. more than one of these C. the B cells