Which of the following statements about the products of glycolysis is true?
atp and nadh are the only high energy molecules produced by glycolysis
a cell may either oxidize or reduce pyruvate, depending on cellular conditions
the production of atp in glycolysis is accompanied by the oxidation of another molecule
the production of atp in glycolysis is an endergonic reaction

You are likely talking about aerobic respiration rather then just glycolysis based on the options: The third option seems best, pyruvate is heavily oxidized during the Kreb's cycle and removed as CO2.
 
Wrong options
Option1- FADH2 is also another highly energetic molecule produced during

Option2- oxidation of pyruvate is a highly directional process and can be considered irreversible in the cell

Option4- Aerobic respiration RELEASES energy from pyruvate and the into NADH/FADH which is then captured by the electron transport chain. An exergonic rxn would take in energy and would not happen spontaneously

This can be looked from different perspectives, but let me know if my answer made sense.

Yes yes yes very good

If dd means heterozygous for dimpled chin, then that is the genotype; but the dominant shows through with only one capital, meaning they have a dimpled chin as the phenotype.if ff is recessive for free earlobes, then that genotype is homozygous recessive; they won't be free, they'll be attached as the phenotype because of the double dose of lower-case f.