W8 Practical Chapter 3-6 quiz

Which of the following is an example of directional selection?

• Average-sized human babies have a higher survival rate.

• Black moths increasing in population in industrialized areas.

• Both extremes of a trait are favored.

• No selection occurs.

Which of the following is a mode of speciation?

•  Adaptive radiation

• Genetic drift

• Sympatric speciation

• All of the above

What is the function of NADH in cellular respiration?

• Acts as a final electron acceptor

• Transfers electrons to the electron transport chain

• Produces ATP directly

• Stores oxygen

In stabilizing selection, individuals with extreme traits have higher fitness than those with intermediate traits.

• True

• False

Genetic drift is more likely to affect large populations rather than small populations.

• True

• False

Allopolyploidy directly leads to speciation by doubling chromosome numbers through hybridization.

• True

• False

During the process of photosynthesis, the enzyme (a)   catalyzes carbon fixation in the Calvin Cycle.

In cellular respiration, ATP is produced through two types of phosphorylation: oxidative phosphorylation and (a)   phosphorylation.

Choose which of the following demonstrate the type of natural selection.

• I: One extreme phenotype is favored, ;
  II: Intermediate phenotypes are selected against;
  III: Extreme phenotypes are selected against.

•  I: Intermediate phenotypes are selected against;
  II: Favor intermediate phenotypes;
  III: Both extreme and intermediate phenotypes are favored.

• I: Favors one extreme phenotype;

  II: Acts against intermediate phenotypes;

  III: Acts against intermediate and extreme phenotypes equally.

•  I: Favors intermediate phenotypes;

  II: Favors intermediate and extreme phenotypes equally;

  III: Acts against extreme phenotypes.

Which of the following are functions of haemoglobin?

• Transport oxygen

• Transport carbon dioxide

• Break down glucose

• Produce ATP