Which of the following represents a difference between viruses and viroids?
A) Viruses infect many types of cells, whereas viroids infect only prokaryotic cells.
B) Viruses have capsids composed of protein, whereas viroids have no capsids.
C) Viruses have genomes composed of RNA, whereas viroids have genomes composed of DNA.
D) Viruses cannot pass through plasmodesmata, whereas viroids can.
B
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What type of sensory receptors function in balance and sensing gravity?
A. mechanoreceptors B. photoreceptors C. nociceptors D. chemoreceptors
In eukaryotes, photosynthesis takes place inside the ________.
A. cytoplasm B. chloroplasts C. mitochondria D. Golgi apparatus
Mitotic cell divisions of the zygote are collectively called cleavage
Indicate whether the statement is true or false
You are attempting to link an individual to a crime. The only evidence you have is a tiny drop of blood. How can you use this drop of blood to definitively make the association?
A) You can use the sample to determine the individual's blood type. B) You can use gel electrophoresis to determine the length of the DNA found in the sample. C) You can use PCR to increase the amount of DNA available for STR analysis.