The function of chloroplasts is
A) cellular respiration.
B) lipid synthesis.
C) photosynthesis.
D) intracellular digestion.
Answer: C
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A bacterial cell must have ___________ in order to transfer portions of its chromosome to another cell.
A. an F factor B. a high frequency of combination plasmid C. a recombination factor D. growth enhancement genes E. all of these components
Decapod crustaceans (shrimps, lobsters, and crabs) all lack
A. a carapace, a dorsal cephalothorax shield. B. a ventral line of appendages, swimmerets. C. a tail spine, telson. D. chelicerae.
Which of the following statements about the Rh marker allele is most accurate?
a. The Rh marker results from a single gene with two alleles. b. An individual's red blood cells carry the Rh cell surface marker if they have one or two copies of the dominant Rh marker allele. c. If a person has one or two copies of the dominant Rh marker allele then their blood type is noted as "positive", that is, B+ or B positive. d. If an individual has two copies of the recessive allele for the gene, they do not have any Rh markers, and are therefore are described as "negative", that is, B- or B negative. e. All of the above
Infection with ________ usually produces acute upper respiratory disease but may cause meningitis in infants 3-18 months old.
A. Klebsiella pneumoniae B. Francisella tularensis C. Coxiella burnetii D. Haemophilus influenzae E. Hafnia species