Answer:
9:7
Explanation:
We get the dominant phenotype in plants that have at least one dominant allele of EACH of the two genes; otherwise, we get the recessive phenotype. So, the observed ratio in the F2 generation is 9:7.
The trp repressor blocks transcription of the trp operon (B) when the repressor binds to tryptophan.
trp operon or the tryptophan operon codes enzymes for the amino acid tryptophan. The operon is on when the tryptophan is low in amount whereas the operon is off when the tryptophan is low in amount. The operon is an assimilation of five genes.
Repressor is a small protein that is supposed to prevent the synthesis of proteins. It does so binding to the operator gene. Therefore, presence or absence of repressor is a determining factor for an operon to be on or off.
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Blood<span> flows to the </span>kidneys through<span> the right and left renal arteries. Inside each </span>kidney<span> these branch into smaller arterioles. The </span>blood<span> is at very high pressure and flows </span>through the arterioles into tiny knot of vessels called the <span>Glomerulus.
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Answer:
The Bay of Pigs invasion
Explanation:
The Bay of Pigs invasion was an attempt of Cuban exiles to destroy the government of Fidel Castro. These were actions of the USA aimed against Cuba. This invasion was one unsuccessful try and shame for the regime of Kenedy. This was an example of a group decision that was unsuccessful. Ths attempt provoked many side effects, as entering of Cuban-Americans in the Congress of America.
