Mutations occur randomly during the process of gene expression or by exposure to mutagens. While some mutations are detrimental, others can create proteins that have positive capabilities. In order for a mutation to be passed to future generations, what must be true about the mutation? * It must occur during the first stage of DNA replication. O It must result in a longer polypeptide chain than normal. O It must be exposed to extensive radiation. O It must occur in cells that give rise to gametes.

Q: describe the normal role of the component, and choose from the selection the most direct effect of…

A: Mutations are the defective change in DNA. Mutations basically changes the base pair sequence of DNA…

Q: What is the function of the Primase enzyme?     To edit out primers at the end of DNA replication…

A: DNA replication: It is a kind of process in which the DNA makes multiple copies of itself during…

Q: What is an anticodon, and where are they found? O a. Anticodons are complementary to codons, and are…

A: The triplet codon is the fundamental component of the genetic code, where each three-nucleotide…

Q: Which of the following is FALSE about DNA methylation? O a. the base to be methylated is found in…

A: The CpG sites or CG sites are regions of DNA where a cytosine nucleotide is followed by the guanine…

Q: Which of the following is considered to be a spontaneous source of mutations that impa the genome? O…

A: The genome is the finished arrangement of hereditary information in a organic entity. It gives all…

Q: In the treatment of cancer, the basis for many types of chemotherapyand radiation therapy is that…

A: The tumor is irregular growth of tissue. It is the first stage of tumor development. The…

Q: Mutations are the original source of genetic variation. How can mutations accumulate in DNA, given…

A: A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during…

Q: Some genetic mutations can cause devastating diseases in humans. However, not all mutations result…

A: Gene is the segment of DNA (deoxyribonucleic acid) which is responsible for heredity and inheritance…

Q: A physicist name Dr Robert Bruce Banner was running some experiments in his lab using gamma rays.…

A: a. Gamma rays are a type of electromagnetic radiation which has a high concentration of energy and…

Q: The gene for the primase enzyme is mutated and is nonfunctional. What is the result of such a…

A: DNA replication unlike transcription cannot start ab initio and requires a primer that is elongated…

Q: Match the process to mutation. a. mutation b. point mutation c. frameshift mutation f. nonsense…

A: There are various types of identified mutation which leads to alterations in genetic material…

Q: Suppose that a gene has a mutation that changes one nucleotide. Because of this one nucleotide…

A: A rapid change in the sequence of DNA (deoxyribonucleic acid) due to physical or chemical factors is…

Q: Ac

A: The fundamental physical and functional unit of heredity is the gene. DNA is the material that makes…

Q: Which type of mutations are the least harmful to an organism? * O Duplication Substitution O…

A: Mutations are sudden changes in the DNA sequence and lead to several new characteristics in an…

Q: You decide to have your genome sequenced. The results come back and show that you have a…

A: Any abrupt change in the DNA causes mutation. This may or may not change the function of the cell.…

Q: When the enzyme telomerase was first discovered, some peoplethought it might be “the fountain of…

A: Telomerase is a ribonucleoprotein that is used for the replication of the terminal chromosomes…

Q: Select the examples of mutation. A gene is copied twice during DNA replication. Several base pairs…

A: The change in DNA sequence of base pair results in mutation. It may or may not change the sequence…

Q: Induced mutations result from ________.     exposure to a hazard such as a chemical exposure to a…

A: Muttations are defined as the mechanism in which the genes present in the DNA changes or alters due…

Q: How would you introduce the change/modification into the skin cells to transform them into neurons?

A: Every cell in an organism's body contain the same genetic material and genome. It is due to the…

Q: Deletion in genomic DNA removes which parts of two genes?

A: The process of spontaneously occurring deletion must include two chromosomes that break to cut out…

Q: Are mutations equally likely to occur in all locations in the genome? Why or why not?

A: Mutation: The changes that occur in DNA sequence or helical structure due to mutagens. These are…

Q: LESSEU Some factors have been proven to increase the risk of mutations occurring. Which of these is…

A: Introduction :- A gamma ray, also known as gamma radiation, is a penetrating form of electromagnetic…

Q: The mutation associated with pancreatic cancer in the family in Figure23.1 was located in an exon of…

A: Mutation is a change in the sequence of genetic material either due to a mistake in replication or…

Q: Many human cancers result when a normal gene mutates and leads to uncontrolled growth (a tumor).…

A: Introduction  Cancer is a popular disease now a day. In the US, 1 in 2 women and 1 in 3 men develop…

Q: Daisy inherits a mutation from her mother that results in the phenotype of red hair. Evegny acquires…

A: Introduction A mutation occurs when the sequence of DNA is altered. Mutations can occur as a result…

Q: How are trisomies and monosomies related to deletions and duplications respectively? What is the…

A: Trisomy is the condition in which a diploid organism will have one duplicate copy of one of its…

Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.