Chromosome seven has 863 protein coding genes but encodes many more proteins. The average gene is...
- Chromosome seven has 863 protein coding genes but encodes many more proteins. The average gene is ~70,000 bp long but average mRNA is ~2600 bp long. Describe both of these observations.
Homework Answers
Chromosome 7 has 863 protein coding genes but encodes many more proteins. This is due to alternate splicing. During transcription, the pre-mRNA transcripts that is formed contains many exons which might be retained or might be excluded/ spliced off to form the mature mRNA sequence. Therefore this leads to the formation of multiple protein isoforms from a single gene.
The average gene is 70,000 bp long but average mRNA is 2600 bp long. This is because coding part of gene is 2600 bp long. The non-coding part of DNA forms tRNA, rRNA, miRNA, lncRNA, promoter region, enhancer/ repressor binding region. These all are part of a gene.
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Chromosome seven has 863 protein coding genes but encodes many
more proteins. The average gene is...
A geneticist discovers that two different proteins are encoded by the same gene. One protein has...
A geneticist discovers that two different proteins are encoded by the same gene. One protein has 56 amino acids, and the other has 82 amino acids. Which of the statements are possible explanations for how the same gene can encode both of these proteins? 1-The same gene encodes both proteins by using different combinations of introns in the pre‑mRNA via alternative splicing. 2-The same gene encodes both proteins by generating a poly(A) tail on the pre‑mRNA. 3-The same gene encodes...
alternative splicing results in ________ more proteins than genes more genes than proteins equal numbers of...
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QUESTION 6 Assume you are studying a protein-coding gene, ACEX, which includes 4 exons as illustrated...
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000_ U SEJJIBU contentId-_876188.1&step Question Completion Status: QUESTION 1 In eukaryotic genes, a. coding exons are...
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Prokaryotic mRNA usually encodes for more than one protein while eukaryotic mRNA a single protein. Eukaryotic DNA is linear and bacterial and archaeal DNA is-linear. In prokaryotes, ribosomes attach to the mRNA and start protein synthesis even before transcription is completed. Eukaryotic mRNA, rRNA, and tRNA are all highway processed. Nuclear pore complexes control the entry and exit to and from the nucleus. They will not let mRNA exit the nucleus before it is full processed. Eukaryotic and archaeal DNA...
OLU Ucues Assignment 4c. In eukaryotes, genes are composed of exons and introns, with only exons...
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28 29 30 31 32 33 28. Genes found in segments of chromosome called heterochromatin would...
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28. Genes found in segments of chromosome called heterochromatin would likely be expressed at high levels. expressed at low levels, or not at all. deleted before replication. maternally inherited only. none of these 29. (Use this representation to answer the following question.) DNA template strand 5 3' DNA complementary strand 3' 5' Using the double-stranded molecule above, in which direction does the RNA polymerase enzyme move? 3' → 5' along the template strand 5'...
35. Insulin is a peptide (protein) hormone secreted by B-cells located in the pancreas. To be...
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Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
QUESTION 6 Assume you are studying a protein-coding gene, ACEX, which includes 4 exons as illustrated in the gene map below. The 5' UTR and 3' UTR segments are each 25 bp long. Exons 1 thru 4 are 100, 200, 300, 400 bp long, respectively. Each intron is 200 bp each. The locations of the relevant EcoRI sites within the ACEX locus are indicated, but the location of other restriction enzyme sites (like BamHI) are not shown." EcoRI probe EcoRI...
000_ U SEJJIBU contentId-_876188.1&step Question Completion Status: QUESTION 1 In eukaryotic genes, a. coding exons are separated by noncoding introns b. coding introns are separated by noncoding exons c. all genes consist of an uninterrupted coding sequence d.genes can include the coding sequences for multiple proteins e. both (c) and (d) QUESTION 2 A gene with 8 exons would have ___ introns. b.9 0.8 d. 24 e. 16 QUESTION 3 The gene for rhodopsin has 5 exons and 6706 nucleotides....
Prokaryotic mRNA usually encodes for more than one protein while eukaryotic mRNA a single protein. Eukaryotic DNA is linear and bacterial and archaeal DNA is-linear. In prokaryotes, ribosomes attach to the mRNA and start protein synthesis even before transcription is completed. Eukaryotic mRNA, rRNA, and tRNA are all highway processed. Nuclear pore complexes control the entry and exit to and from the nucleus. They will not let mRNA exit the nucleus before it is full processed. Eukaryotic and archaeal DNA...
OLU Ucues Assignment 4c. In eukaryotes, genes are composed of exons and introns, with only exons included in the mRNA. Each gene also has its own adjacent promoter, to which the transcribing enzyme RNA polymerase binds. Related genes may be clustered together on the same chromosome as a “gene family." Answer each of the following questions in the answer box of the assignment. You may also write the answers directly into the assignment document and then upload your answers. Number...
28
29
30
31
32
33
28. Genes found in segments of chromosome called heterochromatin would likely be expressed at high levels. expressed at low levels, or not at all. deleted before replication. maternally inherited only. none of these 29. (Use this representation to answer the following question.) DNA template strand 5 3' DNA complementary strand 3' 5' Using the double-stranded molecule above, in which direction does the RNA polymerase enzyme move? 3' → 5' along the template strand 5'...
35. Insulin is a peptide (protein) hormone secreted by B-cells located in the pancreas. To be protein) hormone used to regulate the level of glucose in the bloodstream. It is produced and performed. cated in the pancreas. To better understand how insulin is secreted, the following experiments were a. The mature me mature mRNA for insulin encodes a protein that is 110 amino acids in length. If the genes t is 110 amino acids in length. If the gene is...
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