Exchange of waste, nutrients, and oxygen occurs here. _____

Which are likely involved in promoting cell differentiation during animal development?

A. differential distribution of cytosolic factors among early embryonic cells B. extracellular signals C. cellular receptors D. specific morphogens E. All of the choices are correct

Rosalind Franklin did not share in the Nobel

Prize for the discovery of the structure of DNA because

a. she was a woman. b. her contributions were minimal. c. she was not liked by James Watson. d. her ideas were stolen by Maurice Wilking. e. she died of cancer before the award was given.

Which one of the following best describes the electron transport chain?

a. Electrons pass from one carrier to another, releasing a little energy at each step. b. Electrons are pumped across a membrane by active transport. c. Acetyl-CoA is fully oxidized to CO2. d. Glucose is broken down to a three-carbon compound in preparation for the Citric Acid cycle. e. Hydrogens are added to CO2 to make an energy-rich compound.

Which type of mutation results in the addition of one wrong amino acid as a result of one base replacing another in a DNA sequence

What will be an ideal response?