A scientist pollinates a true-breeding pea plant with violet, terminal flowers with pollen from a true-breeding pea plant with white, axial flowers. Which of the following observations would most accurately describe the F2 generation?
A. 75% violet flowers; 75% terminal flowers
B. 75% white flowers in a terminal position
C. 75% violet flowers; 75% axial flowers
D. 75% violet flowers in an axial position
Answer: C. 75% violet flowers; 75% axial flowers
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Heteroplasmy is associated with inheritance patterns involving
A. nuclear. B. paternal DNA. C. chloroplasts. D. ribosomes. E. imprinted.
Which of the following is a reactant or product during the process of photosynthesis?
a. oxygen b. FADH 2 c. NADH d. pyruvate
Which one of the following initiates implantation by secreting enzymes that break down the endometrium?
A) inner cell mass B) endoderm C) chorion D) mesoderm E) trophoblast
A 67- year old patient with severe sepsis undergoes a full infectious work-up upon admittance to the intensive care unit. Cultures of urine, blood, sputum and cerebral spinal fluid are obtained. The cultures do not yield a specific organism, so further analysis of the sample is done to determine the characteristics of the microorganism. The metabolic processes are analyzed in the lab Biochemical testing reveals that the organism further reduces nitrite to produce nitrous oxide. Based upon this byproduct, which of the following is the most likely catabolic pathway utilized by this organism?
a) aerobic respiration b) anaerobic respiration c) fermentation d) aerobic and anaerobic respiration, as weel as fermentation, cal all lead to the production of nitrous oxide