Biological Selection, Questions Help

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The site of protein synthesis is

Question 1 options:

	at the nuclear membrane.
	at ribosomes.
	near microfilaments.
	always at a Golgi body.

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Question 2 (1 point)

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Removing only one base in a DNA sequence

Question 2 options:

	usually has no effect on the organism.
	could result in a chromosomal mutation.
	cannot occur without extremes of heat and pressure.
	can result in a significant change in the information about a protein.

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Question 3 (1 point)

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A DNA gene strand with the base sequence CCA – TAT – TCG codes for the amino acid sequence: (consult the Amino Acid – mRNA Dictionary in your text or lab manual)

Question 3 options:

	proline – tyrosine – serine.
	glycine – isoleucine – threonine.
	proline – tyrosine – threonine.
	glycine – isoleucine – serine.

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Question 4 (1 point)

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The mRNA codon CAU will form temporary bonds with the

Question 4 options:

	mRNA anticodon CAU.
	mRNA codon GUA.
	tRNA anticodon GUA.
	tRNA codon CAU.

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Question 5 (1 point)

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The sequence of events in protein synthesis can be summed up as follows:

Question 5 options:

	DNA –> transcription –> RNA –> translation.
	DNA –> translation –> RNA –> transcription.
	DNA –> RNA –> transcription –> translation.
	DNA –> RNA –> translation –> transcription.