<p>By which of the following can movement of materials across an animal's cell be accomplished?</p>
<p>I. Active transport
II. Diffusion
III. Pinocytosis</p>
<p>A. I only
B. II only
C. III only
D. I and II only
E. I, II and III</p>
<p>The answer given is D, but I don't understand why E is not applicable. The explanation given didn't account for this either. The explanation gives a description of the three processes, which makes me think that the answer is a print error.</p>
<p>A color blind man marries a normal woman who is heterozygous for vision color. What is the probability that their two daughters are color blind?</p>
<p>A. 0<br>
B. 1/8
C. 1/4
D. 1/2
E. 3/4</p>
<p>The answer was D. But if both of their daughters are color blind then shouldn't the probability be 1/2 x 1/2 = 1/4?</p>
<p>I’m pretty sure the answer to #1 is E. It’s probably a print error or something.</p>
<p>For #2, the answer is 50%. Set up a punnett square with the Male as X^C, Y and the Female is X^C, X. The punnett square cross will result in X^C, X^C; X^C, X; X^C, Y, and X^C, Y.</p>
<p>I don’t know why that shouldn’t be 1/4 because AFAIK your logic is correct…maybe it’s not taking into account that the two females being color blind are independent events?</p>
<p>Yeah theyre probably typos. Pinocytosis Is definetly a form of transport. And the probability of colorblind daughters should be independently calculated</p>
<p>Question 1 is poorly worded. I’m not sure what “across an animal’s cell” means. If it means across the plasma membrane, D is correct. Pinocytosis encloses liquid and small particles in a vacuole. The materials still have to cross the vacuole’s membrane through diffusion or active transport. If “across and animal’s cell” means literally moving the molecules from one part of the cell to another, option C is correct. If it means helps the cell to take in materials in general, then the answer is E.</p>
<p>Your logic on question 2 is correct. The answer is 1/4.</p>
<p>How much did you pay for these questions? If the answer is nothing, at least you got what you paid for.</p>