Stem cells (cells with little or no determination) are useful in many kinds of biological research for which of the following reasons? Group of answer choices A. they do not have particular cell fates B. None of their DNA is methylated C. They have unique cytoplasmic determinants D. They have no microRNA

Q: Which of the following describes an oncogene Group of answer choices A. a gene that stimulates cell…

A: Cancer is caused by changes in the DNA and is called genetic changes. Cancer is the growth of the…

Q: The correct pathway for the generation of a protein that may be used to generate morhpogen gradients…

A: The DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are two types of nucleic acids that are…

Q: A double stranded region of RNA that can stall ribosomes is a(n) A. repressor sequence B. operator…

A: The RNA is produced from the DNA by transcription process and this RNA is used during the…

Q: Which of the following characteristics of chloroplasts and/or mitochondria make them seem more…

A: The most important function of mitochondria is to produce energy currency of cell ie ATP.The central…

Q: After ingesting a bacteria, macrophages process bacterial parts and ‘present’ them to acquired…

A: Immunity is a phenomenon build up inside the body of an individual in order to protect from harmful…

Q: Many antibiotic drugs work by interfering with protein synthesis in bacteria that cause infection.…

A: Protein synthesis occurs through Ribosomes and mRNA and tRNA .The tRNA bound with amino acid reaches…

Q: Changes in a cell that affect micro RNAs lead to cancer because miRNAs... a. help a cell to…

A: Cancer can occur when- apoptosis( programmed cell death) is distributed, inhibition of growth…

Q: Which of the following will most likely contain a cofactor? Select one: a. an enzyme b. microRNA c.…

A: There are different biomolecules that are found within a living organism. These biomolecules…

Q: Epigenetics works by Select one: a. activating DNA ligases so they can clip attached methyl groups…

A: Epigenetics is a field of study within genetics that focuses on heritable changes in gene expression…

Q: During the ________ phase, the cell accumulates building blocks and energy resources to copy its…

A: INTRODUCTION S phase This is the phase in which DNA is replicated, occurring between G1 and G2.

Q: Which of the following is the best description of a transcription factor? A. A protein that brings…

A: Transcription is the process which leads to conversion of DNA to RNA. One distinguishing aspect of…

Q: Exposing Escherichia coli (e.coli) to ionizing radiation results in DNA damage. Say you perform an…

A: Gene expression is the process by which information from a gene is used in the synthesis of a…

Q: Genes of related function frequently cluster into: please explain the answer  a.transcripts…

A: Gene is the functional part of the DNA that undergoes transcription and produce RNA. They have a…

Q: Which of the following is the action of SnRNA (snurps)? a. Knocks out a portion of the gene b.…

A: Splicesomes are large protein-RNA complexes in eukaryotes which undertakes the process of splicing.…

Q: When preparing cells for karyotyping, in which of the following solutions should the cells be…

A: Karyotyping  In this technique, the chromosomes are arrested in the metaphase stage of cell division…

Q: Which of the following is true of transcription and translation in prokaryotes and eukaryotes? A. In…

A: Transcription is the process of formation if m RNA from the DNA. Translation is the process of…

Q: The epigenome for a particular gene determines whether it will

A: When certain chemical compounds or proteins are attached externally to the genome or the DNA, such…

Q: An anticodon would be found on which of the following types of RNA? a. snRNA (small nuclear RNA)…

A: Ribonucleic acid (RNA) is a vital biological macromolecule that persists in all biological cells…

Q: Which of the following is NOT a method by which bacteria can be resistant to antibiotics? Select…

A: antibiotics are the substances produced by microbes to kill other microbes. Antibiotic resistance…

Q: Molecules in higher eukaryotes that are directly involved in gene silencing include all of the…

A: A gene is a stretch of nucleotides present in the DNA. It codes for the synthesis of an RNA or…

Q: Which of the following best describes the flow of information in eukaryotic cells? Group of answer…

A: The central dogma of molecular biology portrays the progression of genetic data in cells from DNA to…

Q: The Golgi Apparatus is primarily responsible for what type of protein processing?   A. Trimming…

A: Single membrane bound, smooth surfaced stack of cytoplasmic tubules and vesicles concerned with…

Q: You genetically modified a bacterium so it can only produce ribosomes from a plal The most immediate…

A: Protein synthesis takes place on the ribosomes in both prokaryotes and eukaryotes and this process…

Q: Match the key learning to the process or investigation statement. a. one-gene/one-enzyme hypothesis…

A: 53.Only nucleotide variations adding or removing three nucleotides produced a functional protein -…

Q: Which of the following order of events correctly depicts the Central Dogma as it would occur in an…

A: The Central Dogma of molecular biology, first proposed by Francis Crick in 1958, represents the flow…

Q: You are studying a protein that you observe to be located in the ER and Golgi. You hypothesize that…

A: Introduction :- ER and Golgi are membrane bound organelles, which are present in the cytoplasm of a…

Q: Scientists wanted to determine what molecule held the 'gene'. If they did a study in which a cell…

A: The flow of genetic information in a biological system is explained by central dogma and it involves…

Q: In which of the following does nitrogenous base pairing (base complementarity via hydrogen bonds)…

A: Nitrogenous base pairing can include DNA-DNA, DNA-RNA, RNA-RNA pairing. Both DNA and RNA are made up…

Q: In order for a cell to begin to replicate its DNA: a. Lamin proteins must be phosphorylated b. p53…

A: Cell division is a procedure in which a parent cell divides into two daughter cells. The cell cycles…