Chytrids are unique among fungi in that they produce ________ spores
a. flagellated
b. haploid
c. two tailed
d. non-motile
e. diploid
a
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Respond to statements 117–121 in reference to the five items
listed below. a. antigens b. antibodies c. helper T cells d. cytotoxic T cells e. effector B cells E 117. These bind, as in a lock-and-key mechanism, to foreign proteins. D 118. These produce immunoglobulins in response to the reinvasion by a virus. D 119. These directly attack the foreign cells of an incompatible skin graft. M 120. An Rh+ molecule in the body of an Rh woman is an example of these. D 121. Proteins produced by these attack bacteria and viruses in the blood.
As intraspecific competition increases, growth and development are affected first, followed by individual survival and reproduction
Indicate whether the statement is true or false
A single cell is divided into four cells in mitosis and two cells in meiosis.
a. true b. false
Which of the following technologies uses electricity to sort DNA fragments based on their sizes?
A.) genetic screening B.) gel electrophoresis C.) DNA microarrays D.) genetic engineering