![Biology](/tpl/images/cats/biologiya.png)
Biology, 18.08.2019 05:20, osnielabreu
Ochre and amber are two types of nonsense mutations. before the genetic code was worked out, sydney brenner, anthony o. stretton, and samuel kaplan applied different types of mutagens to bacteriophages in an attempt to determine the bases present in the codons responsible for amber and ochre mutations. they knew that ochre and amber mutants were suppressed by different types of mutations, demonstrating that each is a different termination codon. they obtained the results. a single‑base substitution could convert an ochre mutation into an amber mutation. hydroxylamine induced both ochre and amber mutations from wild‑type phages. 2‑aminopurine caused ochre to mutate to amber. hydroxylamine did not cause ochre to mutate to amber. these data do not allow the complete nucleotide sequence of the amber and ochre codons to be worked out, but they do provide information about the bases found in the nonsense mutations. what conclusion about the bases in the codons of amber and ochre mutations can be made from these observations
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Biology
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:00, clonetrooper099
What is the statement plant growth is affected by the color light
Answers: 2
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 07:30, richardharding
The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction
Answers: 1
Do you know the correct answer?
Ochre and amber are two types of nonsense mutations. before the genetic code was worked out, sydney...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 11:50
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 27.09.2019 11:50
![Konu](/tpl/images/cats/istoriya.png)
History, 27.09.2019 11:50
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 27.09.2019 11:50
![Konu](/tpl/images/cats/istoriya.png)
History, 27.09.2019 11:50
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 11:50
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.09.2019 11:50