If the sequence of a segment of DNA is 5\'-CGCAACTAC-J\'. What is the appropriat

Question

If the sequence of a segment of DNA is 5'-CGCAACTAC-J'. What is the appropriate sequence for the opposite strand? a. 5'-GCGTTGATG-3' b. 3'-GCGUUGAUG-5' c. 5'-GCGUUGAUG-3' d. 3'-GCGTTGATG-5' e. None of the above Using Figure 1, what amino acid sequence will be generated from the following mRNA condom sequence? a. Leu-Ser-Ser-Met b. Tyr-Arg-Ser-Asn c. Ile-Ala-Ser-Val d. Met-Ser-Ser-Leu e. cannot determine from the information given A mechanism to control gene expression in a eukaryotic cell is DNA methylation. Genes that have been heavily methylated are: heavily methylated are: a. active, producing their protein product b. active, only when the cell is in interphase c. inactive, not producing their protein product d. over active, producing more of their protein product e. none of the above

Explanation / Answer

44

we know that A pairs with T and G pair with C and DNA have thymine and RNA has Uracil so from we can make the opposite strand of the given DNA from this information.

DNA has two strands one strand run in 5' to 3' end and its complementary run in strand is 3 ' to 5 '

So the option D is correct which is

3' GCGTTGATG 5'

45 - AUG codes for Methionine, UCU codes for serine. UCG codes for serine and UUA codes for Leucine

option D is correct which is Met-Ser-Ser-Leu

46 - Methylation prevents the transcription machinery to bind to the promoter region of the gene, as a result of it the gene become inactive.

so the option C is correct.

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