Biology, 08.12.2020 22:10 amykookie24
The genetic code is nearly universal. That is, with few exceptions, the same codons
code for the same amino acids in all organisms What does the near universality of the
genetic code suggest?
A. All life-forms can reproduce with one another.
B. All life-forms have the same number of genes
C. All life-forms have a common evolutionary ancestor.
D. All life-forms arose about the same time in Earth's history
Answers: 3
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Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10
Answers: 2
The genetic code is nearly universal. That is, with few exceptions, the same codons
code for the sa...
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