Who played the most influential role in discovering the importance of the nucleus?

a. Matthias Schleiden
b. Theodor Schwann
c. Robert Hooke
d. Rudolf Virchow


Ans: a. Matthias Schleiden

Biology & Microbiology

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Some cancer cells produce the enzyme ________, which avoids stimulating apoptosis based on the number of cell divisions.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Four of the five structures listed below belong to the

same sense. Select the exception. a. otolith b. vestibular apparatus c. semicircular canal d. cochlea e. saccule

Biology & Microbiology

Which of the following is a TRUE statement?

a) It is always possible to determine the genotype of an individual from the phenotype. b) Genes come in different versions called genomes. c) A human with a somatic number of 47 would have 3 copies of some genes. d) A true breeder must always be homozygous dominant.

Biology & Microbiology

Which taxonomic group of microorganisms is primarily responsible for the oxygenation of Earth?

a. anaerobic bacteria b. cyanobacteria c. filamentous algae d. purple phototrophic bacteria

Biology & Microbiology