The pellicle of a Euglena cell consists of ________.
A. protein strips and microtubules
B. peptidoglycans
C. polysaccharides
D. glycoproteins
Answer: A
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Random chromosomal alignment can produce a large amount of gamete variability; the formula and number of unique combinations for 4 pairs of homologues is ________
a. 24 (16) b. 42 (16) c. 23 (8) d. 44 (256)
Which characteristic of the molecule on the left determines the structure of the molecule on the right?
1.configuration of sugar-phosphate backbone
2.sequence of nitrogenous bases
3.type of pentose
4.measurement between major and minor grooves
Laboratory fermentation tests often include a pH indicator because many bacteria produce (O2/bases/acids) as they ferment carbohydrates
What will be an ideal response?
Which of the following statements about prokaryotic mRNA molecules is false?
(a) A single prokaryotic mRNA molecule can be translated into several proteins. (b) Ribosomes must bind to the 5? cap before initiating translation. (c) mRNAs are not polyadenylated. (d) Ribosomes can start translating an mRNA molecule before transcription is complete.