Some protozoa have cell structures that are formed as temporary extensions of the cell membrane, allowing the cell to detect and respond to their environment, and to catch and engulf food. These extensions are called
What will be an ideal response?
pseudopodia.
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Host range is limited by the
A. type of nucleic acid in the virus. B. size of the host cell. C. age of the host cell. D. type of host cell receptors on cell membrane.
The color distribution in the fur of calico cats results
from a. hybridization. b. a specific nutritional deficiency. c. a genetic defect. d. X chromosome inactivation. e. selective breeding.
Which of the following genetic diseases involve defects in DNA repair, which affects cell division?
A. Gaucher disease and Werner syndrome B. Kearns-Sayre syndrome and progeria C. Progeria and Werner syndrome D. Gaucher disease and cystic fibrosis E. Progeria and Werner syndrome
Proteins contain twenty different subunits ____
a. that are the carriers of genetic information b. arranged in a double helix attached to DNA c. including thymine, cytosine, guanine, and adenine d. in the form of nucleotides e. in the form of amino acids