Biology 2e
Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 12, Problem 5RQ

Mendel performed hybridizations by transferring pollen from the_____ of the male plant to the female ova.

a. anther

b. pistil

c. stigma

d. seed

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For each items choose the letter of the best answer. No need to write the explanations. 26. How does polyploidy occur in plants? A. A diploid pollen united with a haploid cell B. A haploid pollen unites with a diploid seed C. A diploid sperm unites with a haploid egg D. A haploid sperm unites with a diploid egg 32. Which of the following key terms is incorrectly matched with its membrane protein? A. Channel - tunnel B. Enzymatic- metabolism C. Junction - communication D. Receptor - cross 36. Which cell membrane component is composed of fatty acids with no charge and is, therefore, nonpolar? A. Glycerol B. Head C. Phosphate group D. Tail 38. What do unsaturated fatty acids have that saturat fatty do not have in a phospholipid which allow more room for substances to go through? A. Non-polarity B. Affinity to water C. Bending at 30° D. Double bonds 39. Which of the following specific criteria for a molecule is LEAST considered when it crosses the membrane? A. Charge B. Appearance C.…

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