Which scenario would NOT cause a change to the amino acid that is added to a polypeptide chain? a. The mRNA sequence UCC changes to UCG. b. The mRNA sequence UCU changes to UAA. c. The mRNA sequence UCU changes to UUU. d. The mRNA sequence UCU changes to UGC. e. The mRNA sequence CGG changes to CAG.

Q: What is the role of transcription in the determination of the amino acid sequence of a polypeptide…

A: Transcription is the initial stage in gene expression, when information from a gene is used to build…

Q: What type of molecule contains the site where amino acids link together to make a polypeptide? a.…

A: Translation is a process of protein synthesis from an mRNA sequence. It occurs in the ribosomal…

Q: A scientist isolates some mRNA from one gene and compares its sequence to that of the gene from…

A: a scientist isolates some mRNA from one gene and compares its sequence to that of the gene from…

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A: Steroids are biological active compounds having four fused rings.All steroid are composed of four…

Q: 3⁰ A 5 A GC G G A UA A/C UGU P Examine the tRNA above. Which codon on the mRNA strand codes for this…

A: The translation is the process by which polypeptide chain or protein is synthesized from the mRNA…

Q: RNA plays an important role in what biological process?a. replication b. protein synthesisc. lipid…

A: Ribonucleic‌ ‌acid‌ ‌(RNA)‌ ‌‌is also‌ ‌a type of ‌genetic‌ ‌material‌ that is composed of ribose…

Q: Can one transcription factor sometimes act as a repressor and sometimes act as an activator? a. Yes,…

A: Transcription factors are proteins that bind to neighbouring DNA and help switch particular genes…

Q: Where in a gene would a 4-bp insertion mutation havethe least effect on gene expression?a. Intronsb.…

A: Mutation is defined as the change in genetic makeup triggered by natural or man made processes. The…

Q: What is the role of executioner proteins in apoptosis?a. They kill the cell by destroying its…

A: Apoptosis is a cellular process which is a programmed cell death mechanism. Whenever any cell starts…

Q: What is a nucleosome? a. A region in the cell’s nucleus that contains euchromatin b. A region of…

A: DNA(deoxyribonucleic acid) is a molecule comprised of two polypeptide chains that coil around each…

Q: nfer what the result would be if the A site on the ribosome was not in the correct conformation…

A: The biochemical substance that is carried from the preceding generation to the succeeding generation…

Q: What is the first step in protein synthesis?

A: The Translation is the second part of the central dogma of molecular biology: RNA Protein : It is…

Q: Examining the DNA of a cancerous cell, a scientist would find strong expression of A. siRNAs. B.…

A: Option c i.e. oncogenes is the correct statement for the above question.

Q: Where does the transcription of DNA into mRNA occur in eukaryotes?   A. Nucleus   B. tRNA   C.…

A: The gene expression involves the transcription and translation of gene and mRNA (messenger…

Q: A cell biologist asks you to image a protein of interest tagged with eGFP in a living cell. Describe…

A: Introduction :- eGFP is engineered ( enhanced) green fluorescent protein . The normal GFP protein is…

Q: create a hypothesis to explain how changes to the amino acid sequence in the MC1R protein could…

A: The MC1R protein is super important for controlling skin and hair color in animals, and it does this…

Q: Many viruses enter host cells through receptor-mediated endocytosis, What is an advantage of this…

A: Receptor-mediated endocytosis is a form of endocytosis in which only chemicals that are specifically…

Q: Use the diagram of a gene below to answer the question. The site of transcription initiation of the…

A: In the cytoplasm or endoplasmic reticulum, the process in which ribosomes synthesize proteins after…

Q: D. Which letter in the diagram above best corresponds to the location where exons are found? O A O C…

A: The method of producing RNA copies of a genetic sequence is known as transcription. This duplicate,…

Q: During gene expression, which information flows in the correct order?   A. RNA --> Transcription-->…

A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.