After DNA replication is completed, _____.
Fill in the blank(s) with the appropriate word(s).
Ans: each new DNA double helix consists of one old DNA strand and one new DNA strand
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Which of the following are examples of molecular homologies? Select all that apply.
_____ Use of DNA as an information storage molecule. _____ The lack of an IGF-1 gene in prokaryotes. _____ Similarities among in the metabolic process for the break down of glucose. _____ The biochemical pathways for cellular respiration in plants and animals. _____ The biochemical pathways for photosynthesis in plants and cellular respiration in animals.
When referring to membrane glycolipids and glycoproteins, the term "glyco-" indicates ____
a. nonpolar carbohydrate groups are attached to the molecules b. polar carbohydrate groups are attached to the molecules c. the molecules are found on both the interior and exterior of the membrane d. the molecules are attached to the membrane by ionic bonds e. the molecules are rarely found on the membrane exterior
The universal response when a ligand binds to a receptor is the ligand falls off.
a. true b. false
The protective layer outside of the plasma membrane of the plant cell is called
A. chitin B. the cell wall C. pectin D. proteoglycans E. cellulose