Viruses are not considered to be living things, although they can evolve, and they do have genetic material. However, they
a. cannot reproduce on their own.
b. cannot cause disease.
c. possess a molecular structure entirely different from living cells.
d. do not possess DNA.
e. do not possess enzymes.
A
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A substance that "teaches" the immune system to recognize a disease-causing agent without actually causing a disease is termed a(n)
A. antibiotic. B. sulfa drug. C. analgesic. D. vaccine. E. injection.
The number 6 carbon of mannose is exposed:
a. In the nucleus b. In the rough endoplasmic reticulum c. In the smooth endoplasmic reticulum d. In the medial phase of the Golgi e. None of the above
Which two things are sensed by a Chlamydomonas cell's eyespot?
a. light location and colour b. light location and intensity c. light energy and colour d. light energy and intensity
Distribution of daughter chromosomes derived from sister chromatids during meiosis II then leads to a total of ______ new cells, each with the haploid number of chromosomes.
Fill in the blank(s) with the appropriate word(s).