Which of the following statements about homologous chromosome pairs is false?
a. They come from only one of the individual's parents.
b. They usually contain slightly different versions of the same genetic information.
c. They separate from each other during meiosis I.
d. They synapse during meiosis I.
e. Each contains two sister chromatids at the beginning of meiosis I.
Ans: a. They come from only one of the individual's parents.
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A. is used to synthesize ATP. B. is used to drive flagella rotation. C. is used to produce NADH. D. is used to produce FADH2. E. is used to synthesize ATP AND is used to drive flagella rotation.
Nutritional symbiosis:
What will be an ideal response?
Dalton's Law states that:a
the amount of a gas that diffuses across a membrane depends on the differences in the gas' partial pressure. b. the ability of hemoglobin to bind oxygen depends on the partial pressure of oxygen. c. in a mixture of gases, the total pressure of the mixture is the sum of the pressures of the individual gases. d. pH causes a displacement of the oxygen-hemoglobin dissociation curve. e. as the concentration of chloride ions increases, the ability of hemoglobin to bind carbon dioxide decreases.
In a 32-cell stage tunicate embryo, vegetal marginal cells that lack functional genes for both macho-1 and the FGF receptor would develop as what cell type?
A. Notochord B. Muscle C. Mesenchyme D. Nerve cord