Oocytes contain inactivated ______ that become activated soon fertilization. The mechanism that regulates this activation is ___________. Select one: a. proteins, poly-acetylation b. proteins,poly-adenylation c. mRNA, poly-acetylation d. mRNA-poly-adenylation e. egg cells, poly-acetyation
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- Select the incorrect statement: O A. Transcription produces an mRNA of a gene that leaves the nucleus. O B. A hydrophobic hormone-receptor complex may increase the expression of a specific protein by stimulating the transcription of more of that protein's MRNA. OC Protein synthesis is a two-phase process that includes transcription and translation. O D, In the process of transcription, the entire chromosome is copied by RNA polymerase.In which tissue(s) is the mRNA and protein highly expressed in? 1. Go to: https://www.proteinatlas.org/2. Type the name of your protein in the search bar. Click "Search"3. Click on the gene name of your protein4. Click on the "Tissue" icon5. Scroll down to the graphs showing Protein and mRNA expression.6. Search for the tissue type that shows high expression in both the protein and mRNA graphs. Kidney Placenta Adipose tissue Stomach Ovary *Can be more than one answer*What does this expression mean? DNA → RNA→ Protein A DNA first turns into RNA; then the RNA turns into a protein. B The information in a DNA molecule is used to make an RNA molecule; then the information in the RNA is used to build a protein. C A cell passes through a phase where it has only DNA, then only RNA, then only protein.
- The main function of an mRNA molecule is to_______ . a. store heritable information b. carry a translatable message c. form peptide bonds between amino acidsWhich of the following statament is NOT TRUE about gene expression?a. The expression of genes that code for proteins includes two stages: replication and translationb. Translation is the synthesis of a polypeptide using the information in the mRNA.c. During gene expression, the information encoded in genes is used to make specific polypeptide chains or RNA molecules.d. Gene expression is the process by which DNA directs the synthesis of proteinsIn a fly egg, the nurse cells are killed before they can produce bicoid mRNA. What will happen? Group of answer choices A. The larva will develop normally B. The resulting larva will have no head and two tail ends C. The resulting larva will have two heads D. The resulting fly will have legs growing out of its head
- Two cells use the same segment of DNA to produce two different proteins. The mRNA transcribed by cell A contains more introns than does the mRNA produced by cell B. Which of the following is true about the proteins of these cells? O A The protein for cell A is longer. O B. The protein for cell A is shorter. O C. Cell A produces more of this protein. O D. Cell A produces less of this protein. mswered MacBook Air F3 F4 F7 F9 @ # $ % & * 2 5 6 7 W E R S D H KHow does gene activation lead to cell differentiation? Explain the correct answer and explain why the others are wrong. A. Different genes are activated in different cells, causing each cell to have a unique funcation B. The same genes are actives in every cell of your body, causing every cell to function the same C. Certain cells only have parts of DNA that causes cell deferentiation D. Unique genes are in different cells, causing each cell to have a unique functionWrite the word TRUE if the statement is correct and if false, replace the underlined words with the correct one. 1. Heterochromatin is typically gene-rich and composed of loosely-packed DNA that is transcriptionally active. 2. Molecular switches regulate the expression of genes by directing where and when genes should be turned on or off depending on the cell signal. 3. DNA Methylation and acetylation of histones are inverselycorrelated 4. Specialized cells produce specialized proteins derived from luxury genes which are constitutively expressed. 5. In mammals, methylation patterns that regulate DNA structure and gene expression become evident from the gastrula stage.
- The diagram shown represents the coding strand of the myosin gene. Mutations in myosin can lead to muscle defects during development. Using what you know about how mutations can affect transcriptional and post-transcriptional regulation, match the results shown on the Northern (mature mRNA) to the mutations shown. The N lane shows the size and amount expected for non-mutated myosin mRNA. All samples were loaded at the top (-) side of the gel. Part 1. Which lane or lanes on the gel could be the result of mutation A? --4 ТАТАА AUG UAA Only known regulatory region TSS Mutation B: Mutation C. A: 5-base 20 nucleotides 3 nucleotides deletion deleted changed N 1 2 3 4 5The diagram shown represents the coding strand of the myosin gene. Mutations in myosin can lead to muscle defects during development. Using what you know about how mutations can affect transcriptional and post-transcriptional regulation, match the results shown on the Northern (mature mRNA) to the mutations shown. The N lane shows the size and amount expected for non-mutated myosin mRNA. All samples were loaded at the top (-) side of the gel. Part 1. Which lane or lanes on the gel could be the result of mutation A? 00000 I lane 1 lane 2 lane 3 lane 4 lane 5 TATAA Mutation A. Deletion of indicated 2 nucleotides AUG TSS Mutation B. Deletion of 150 nucleotides N 1 2 3 4 5 UAA Mutation C. 3 nucleotides changedThe diagram shown represents the coding strand of the myosin gene. Mutations in myosin can lead to muscle defects during development. Using what you know about how mutations can affect transcriptional and post-transcriptional regulation, match the results shown on the Northern (mature mRNA) to the mutations shown. The N lane shows the size and amount expected for non-mutated myosin mRNA. All samples were loaded at the top (-) side of the gel. Part 1. Which lane or lanes on the gel could be the result of mutation A? ТАТА AUG UAA Only known regulatory region TSS Mutation B: Mutation C. 3 nucleotides 20 nucleotides deleted A: 5-base deletion changed 1 2 4 5 lane 1 lane 2 lane 3 lane 4 lane 5 OOO0O