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23 Nov 2019

Which of the following parts of gene code for amino acids?


introns

exons

promoter

poly A tail

all of the above

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Jamar FerryLv2
22 Jul 2019
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Related questions

A gene for a hypothetical protein has 5 exons and 4 introns. The exons are 230, 441, 160, 515, and 150 bases long. The length of the introns are 2766, 4185, 4108, and 5373 bases. What is the predicted length of the spliced mature mRNA (excluding the poly A tail)?

A.

16.4 kilobases
B.

1.9 kilobases
C.

5.4 kilobases
D.

1.5 kilobases
E.

2.0 kilobases
1)How many fragments of DNA will be produced, if you digest pBR322with the restriction enzyme EcoR1?

2) (more than one answer) A mature eukaryotic mRNA containsthe following:
a)Introns
b)Exons
c)Poly A tail
d)A methylated guanine cap
e)UTR our side start and stop codons

3) Which of the following statements are correct ?
a)An eukaryotic promoter contains TATA box
b)A protein molecule terminates with one acidic and one basicends
c) Several transcription factors are involved in initiating agene transcription
d) An RNA primer is needed for gene transcription
e) RNA polymerase || is responsible for eukaryotic genetranscription

When we use DNA to code for a protein, we call the process Transcription and Translation. Below are descriptions of processes that happen when we use DNA to code for a protein. Match the description of each process with the correct term - either Transcription or Translation.

1.A ribosome reads the mRNA and builds a protein from amino acids.
2.A copy is made of a gene in RNA
3.The primary transcript is modified: introns are removed and the transcript gets a cap and a tail
4.tRNA carries amino acids to a ribosome
5.The DNA unwinds, exposing the gene to be copied.

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