You find a multi-legged animal in your garden and want to determine if it is a centipede or a millipede. You take the animal to a university where a myriapodologist quickly tells you that you have found a centipede
Which of the following may have allowed her to make this distinction? A) segmentation
B) poisonous fangs
C) egg-laying
D) molting
B
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Which of the following is incorrect about termination codons?
A. They are UAA, UAG, and UGA. B. They are the location where the bond between the final tRNA and the polypeptide is broken. C. They are also called nonsense codons. D. They do not have corresponding tRNA. E. They include AUG.
How many chromosomes are present in human somatic cells?
a. 22 b. 23 c. 44 d. 46 e. 48
Sex-influenced traits are expressed ____
a. aftafter the formation of a Barr body b. more in males than in females c. as a result of hormone differences between males and females d. only in males e. only in females
In the Southern blot technique, which of the following is NOT required?
A) transfer of DNA to nitrocellulose B) addition of a labeled probe to identify the gene of interest C) restriction enzyme digestion of DNA D) electrophoresis to separate fragments E) addition of heat-stable DNA polymerase to amplify DNA