The nucleolus plays a major role in synthesis of ________.

A. transcription activation proteins
B. tRNA
C. rRNA
D. mRNA


Answer: C

Biology & Microbiology

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Two snapdragons heterozygous for alleles that encode red and white flower color are crossed. If the red and white

alleles show incomplete dominance, what will be the ratios of phenotypes in the offspring?

a. 100% pink b. 100% red c. 50% white, 50% red d. 25% red, 50% pink, 25% white e. 25% pink, 50% white, 25% red

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Enzymes contained in _____ break down worn-out organelles, bacteria, and other particles

Fill in the blank(s) with correct word

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Which of the following is the major component of most plant cell walls?

A) chloroplasts B) lignin C) starch D) cellulose

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Which lower respiratory tract disorder can be cured through the use of antibiotics that are effective against bacterial infections?

A. Pneumonia B. Strep throat C. Emphysema D. Asthma

Biology & Microbiology