Natural killer (NK) cells are a type of:
A. Lymphocyte
B. Helper Cell
C. Monocyte
D. Phagocyte
Answer: A. Lymphocyte
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All of the following are contributing to the current imbalance of the carbon cycle
a. deforestation b. photosynthesis c. burning of fossil fuels d. ALL of the above are contributing to the current imbalance of the carbon cycle
Experiments with bacteria and __________ offered solid evidence that deoxyribonucleic acid (DNA),
not protein, is hereditary material. Fill in the blank(s) with the appropriate word(s).
Genes on the same chromosome are said to show ____________________. Fill in the blank(s) with the appropriate word(s)
Gametes may carry different combinations of alleles because of Select one:
a. random fertilization and alignment of chromosomes. b. random fertilization and crossing over. c. crossing over and random alignment of chromosomes. d. random fertilization. e. random alignment of chromosomes.