Answer:
DNA: A = T and T = A. C = G and G = C
T A C G A T T G G A C G
mRNA: A = T and T = U . C = G and G = C
T U C G U T T G G U C G
Amino Acids:
A = Adenine
T = Thymine
G = Guanine
C = Cytosine
U = Uracil
In a clinical situation where it is essential to control microbial growth that includes both mycobacteria and endospores, the chemical <span>agent that would be the most effective to guarantee the broadest disinfection are chlorines.
Chlorine (Cl) is a yellow-green gas often used for disinfection in its liquid form. </span>
Answer: D. Frameshift mutation
Explanation:
A nonsense mutation is one in which a codon codifying for an amino acid is replaced by a stop codon, resulting in a premature end to translation (e.g. TAT [Tyrosine] >> TAG [stop]).
A missense mutation is one in which a codon is altered in such a way that it ends up codifying for a <em>different</em> amino acid (e.g. AUA [Isoleucine] >> AUG [Methionine]).
A point mutation is any mutation which involves the altering of a single nucleotide (such as the examples given above), <em>regardless</em> of its effect on the resulting protein.
Finally: a frameshift mutation is one which alters the <em>reading frame</em> of a gene, which results in a whole different set of nucleotides being treated as individual codons by the translation machinery. The consequence of this is a significant change in the resulting amino acid sequence. Frameshift mutations may be the result of several mechanisms which include insertions and deletions. The example given in the picture appears to show an example of one such mutation.
The answer is C. The original population is the dotted line and the population after the selection is the faded blue. The two shell patterns are increasing while the most common was is decreasing.
The physical expression of genes are phenotype. Phenotype is the expression of the gene by the appearnace of the organism. It is the characteristics of that trait.
Examples : When pigment is made in our eyes, height ( tall and short) , weight, blond hair is the phenotype for the blond hair genotype and skin colour( black, white ) is the phenotype trait.