Which of the following is true about Euglena?
A. They have a pellicle.
B. They lack chloroplasts.
C. They belong to the same phylum as Paramecium.
D. They do not have flagella.
E. They have sexual reproduction.
Answer: A
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The diversity of microorganisms in culture collections is representative of the diversity of microorganisms found in nature
Indicate whether the statement is true or false.
Which of the following proteins is involved in synthesizing messenger RNA in eukaryotes?
A. RNA polymerase I B. RNA polymerase II C. RNA polymerase III D. sigma factor E. both RNA polymerase I and III
_____ is the transmission of DNA to offspring
a. Reproduction c. Homeostasis b. Development d. Inheritance
Which of the following can be defined as small proteins that are secreted from virally infected cells to prevent the spread of the infection?
A) macrophages B) mast cells C) immunoglobulins D) interferons