answers - Question 2 Which of the following happens when...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Question 2 (4 points) Save Which of the following happens when sperm fertilizes a mammalian egg? a A) The sperm acrosome reaction digests part of the zona pellucida a B) Sperm centriole enters the egg to form the mitotic spindle for the first cell division a C) Sperm nucleus enters the egg a D) Sperm fusion with the egg induces a wave of calicum release which activates the egg's metabolism  preparing it for embryognesis Which of the following statements about cancer is true? A) Mutations that lead to cancer nearly always knock out the function of a normal gene.  a B) Anything that causes tissue damage leading to additional cell divisions needed to repair the tissue  increases the likelihood of cancer. a C) Cancers nearly always start from a single cell. a D) Cancer is a disease of old age because multiple genes must be mutated for cells to begin to divide out  of control. Which of the following are characteristic of the non-covalent interactions that cause both protein folding and  protein-protein interactions? A) They all have free energy changes for association between about -1 to -5 kcal/mole B) The strength of the hydrophobic interaction would be about the same in alcohol as in water C) The free energy changes are so much smaller in magnitude than covalent bonds that large number of  new non-covalent bonds must form for the equilibrium constant to favor association.  D) If a protein were unfolded in water, hydrogen bonds would be formed between water molecules and the  N-H and C=O in the peptide backbone  Skin fibroblast cells were converted to embryonic stem cells by transforming them with the addition of only four  genes. Which of the following statements are true.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/06/2008 for the course MCB 410 taught by Professor Ward during the Spring '08 term at University of Arizona- Tucson.

Page1 / 3

answers - Question 2 Which of the following happens when...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online