Which of the following cells are classified as phagocytes? Select all correct choices
A. macrophages
B. natural killer cells
C. neutrophils
D. mast cells
E. plasma cells
A,C
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In rabbits, there are four alleles at the c locus. Arranged in dominance sequence, they are:C
(agouti) cch (chinchilla) ch (Himalayan) and c (albino) (a) Is it possible to cross two agouti rabbits and produce both chinchilla and Himalayan offspring? (b) Is it possible to cross two chinchillas and produce 1/2 chinchilla and 1/2 Himalayan? What will be an ideal response?
Deletion of an entire autosome ____
When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate.
a. true b. false
In the pine life cycle, when does fertilization often take place?
a. a few days before pollination b. at the same time as pollination c. a few weeks after pollination d. months to a year after pollination