Mitochondria and chloroplasts may have once been prokaryotes <span>because of the Endosymbiosis theory.</span>
Answer:
The correct answer is option C. "A single tRNA specific for a particular amino acid may respond to multiple codons in an mRNA".
Explanation:
Genetic code is said to be "degenerate" because there are more codons than amino acids, which is possible because a single tRNA specific for a particular amino acid may respond to multiple codons in an mRNA. tRNA recognize the codons of the mRNA by a specific nucleotide sequence called anticodon, however the nucleotide sequence of the anticodon can recognize more than one codon sequence. This phenomenon takes place at the third position of the codon and is known as "wobble".
Answer:
Mullerian mimicry
Explanation:
The Mullerian mimicry is a type of mimicry where two or more organisms that are not closely related have mimicked each other for the benefit of all of them. This occurs usually at species that are not closely related, but are similar in size and often in shape. Both species have a proper defense mechanism, being very toxic, containing some acids, being uneatable, but in order to avoid injuries or mistaken attacks, they have also developed a warning signal, usually manifested through their coloration. Both species develop the same type of coloration and patters, making them look almost identical. This is for the benefit of both species, as the predators that they have in common will avoid both species by thinking that it is only one species that is not good for eating, thus having it more easy for remembering and avoiding, especially when it comes to the younger individuals of the predators.
The answer for this should be articulation, but it could also be joint or arthrosis. All three pretty much mean the same thing.
