Answer: The upper chamber is called an atrium, or auricle, and the lower chamber is called a ventricle. The two atria act as receiving chambers for blood entering the heart; the more muscular ventricles pump the blood out of the heart.
True if you are talking about an isotonic solution
The world’s deepest lake is Lake Baikal in Russia. And you’ll find there the <span>Baikal seal, Lake Baikal seal or nerpa. It is a type of </span>earless seal <span>widespread to </span>Lake Baikal in Siberia, Russia and the only mammal there. Like the Caspian seal, it is interrelated to the Arctic ringed seal. The Baikal seal is one of the smallest true seals and the
only completely freshwater
pinniped<span> species. It remains a scientific ambiguity of how
the seals initially came to Lake Baikal, hundreds of kilometers from any ocean.</span>
Answer:
The correct answer is option d- none of these.
Explanation:
The genetic code for methionne is AUG and genetic code for isoleucine are AUC, AUA, AUU. As we can see that there are first two codons are similar for both methionine and isoleucine.
So mutation at to any other site other than third psostion not possible that can convert isoleucine to methionine and this same mutation site is the only mutation position mutation can revere back methionine to isoleucine.
Thus, none of the given can restore an isoleucine codon.