15. How do some cells become brain cells and others become skin cells, when the DNA in ALL the cells is exactly the same? In other words, if the instructions are exactly the same, how does one cell become a brain cell and another a skin cell?

Q: 3. The human genome contains about 20,000 genes but human cells can synthesize about 80,000…

A: The human genome is made up of both coding and non-coding regions. The coding regions, also known as…

Q: Why is RNA necessary to act as a messenger? Why can't the code be taken directly from the DNA? How…

A: Introduction: RNA is a single-stranded molecule that is present in both the nucleus and cytoplasm,…

Q: 5. You imagine that not all life forms (including viruses and aliens) must have double stranded DNA…

A: a.The genome is double stranded RNA. Since, there is no thymine (T) in the genome and there is…

Q: An original cell replicates its DNA. The cell undergoes mitosis and cell division, and one of the…

A: Answer One of the cells will contain DNA consisting of one strand from the original cell.

Q: 5. The DNA sample in your final vial contains numerous strands of DNA ( 46 chromosomes from EACH…

A: Question :  The DNA sample in your final vial contains numerous strands of DNA ( 46 chromosomes…

Q: For the Central Dogma of Molecular Biology: I in the LINES with: Protein, Primary mRNA, Active…

A: Introduction Central dogma in molecular biology is the process by which the instructions in DNA are…

Q: 8. If you only had the amino acid sequence of the protein, would you be able to figure out the exact…

A: Translation Through the process of translation, mRNA sequences is translated into the sequence of…

Q: 4. Compare the DNA sequences of individuals with Alzheimer's disease and their family members. Two…

A: The amyloid beta precursor protein (APP) is coded by the APP gene that is located on the chromosome…

Q: 28. Given the relative proportion of DNA that directly codes for genes, is it reasonable to say that…

A: Introduction :- A gene is a basic unit of heredity in biology, consisting of a sequence of…

Q: what is The entire complement of DNA sequences in an organism.?

A: Genome

Q: 1. Which of the following pairs is mismatched? None of the pairs are mismatched Joseph Lister -…

A: Introduction:- Antibiotics are the drugs or medicines which are used to treat the bacterial…

Q: 4. Below is a diagram of two adjacent genes in the E.coli genome. You have a wild type strain, and…

A: Q 4.) Ans.In this genetic study involving E. coli, two adjacent genes, Gene A and Gene B, are…

Q: The functions ascribed to the genetic material are replication, expression, storage, and mutation.…

A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…

Q: 7. The coding region of the human insulin gene includes an (endoplasmic reticulum) ER signal…

A: Protein targeting is the mechanism of transporting newly synthesized proteins to their destination.…

Q: Which of the following best describes why it is possible for the bacteria to read the instructions…

A: The instructions to form a protein is inherent in the template strand of DNA. This template strand…

Q: In what mechanisms can genetic information be altered? What are the consequences of these changes?

A: Alteration or changes in genetic information is called mutation. Mutation can be spontaneous or it…

Q: 1. Regarding nucleosome structure, which of the following statements is correct? A. Nucleosomesare…

A: Chromatin is a complex made of DNA and protein in equal proportion along with small amounts of RNA.…

Q: 11. Mary Alexander studied the effects of radiation on mutation rates in sperm of Drosophila. She…

A: Given  Radiation amount = 3000r  and 3975r  Number of offsprings  Control = 45,504, mutated = 2…

Q: When a particular mutagen is identified by the Ames test and injected into mice (group A), it causes…

A: Ames test is the widely practiced method that is used to determine whether a chemical(mutagen) can…

Q: Each nucleotide pair of a DNA double helix weighs about 1 × 10–21 g. The human body contains…

A: DNA is a polynucleotide and each strand of DNA is made up of certain numbers of nucleotide, this is…

Q: In genetic engineering, the term vector refers to: the enzyme that cuts DNA into restriction…

A: Vector - It's a DNA molecule through which act as vehicle which carry foreign genetic material into…

Q: 18. The DNA sequence M, shown below, is the sense strand form a coding region known to be a…

A: * Frameshift mutation is a mutation in which insertion or deletion of nucleotide occurs which…

Q: 6. The banding patterns of the DNA fragments within the gel reveal that.. child 1 and child 2 cannot…

A: During DNA testing, the banding patterns are observed as it shows whether the individuals share a…

Q: onohybrid Crosses: X-Linked Recessive Traits 8. Red-green colorblindness is an X-linked recessive…

A: We will assume that the normal allele is represented by C while the mutant allele (recessive allele)…

Q: 4. Why do the dideoxynucleotides stop DNA extension?

A: The sequences of nucleotides on the DNA strand (dNTPs) constitute the genetic code or genome. The…

Q: It is known that RNA is a nucleic acid responsible for the synthesis of proteins. However, there is…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: A husband and wife both have normal skin pigmentation. Their first child is albino. Give the…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: 5. You are given three different substances that are known mutagens. Using a variety of techniques,…

A: The objective of the question is to match each of the three substances with one of the given…

Q: 2. Consider the scenario where a DNA mutation occurs in a person's skin cells, where the gene p53…

A: ANSWER: Because p53 is a gene that helps prevent cancer from developing, having a mutation in it…

Q: 5. The genetic evidence for a triple code (three nucleotides are responsible- for one amino acid)…

A: The proteins are produced from the mRNA by the translation process. This function is performed by…

Q: How is RNA interference (RNAI) used as a form of gene therapy? O Small pieces of RNAI are used to…

A: There are few points about RNA interference: It is an evolutionary conserved mechanism of gene…

Q: 1

A: INTRODUCTION:- A mutation is any change in the nucleotide sequence of DNA.Some mutations affect…

Q: A patient has discovered a lump in their breast. The doctors decide to biopsy (take tissue samples…

A: In the case of a patient with a breast lump, the doctors decided to perform a biopsy, taking tissue…

Q: 3. Haplopappus is an annual flowering plant that grows in deserts. It is of interest because its 2n…

A: Introduction The cell cycle is the sequence of events that occur in a cell leading to its division…

Q: What is the name of the process by which bacteria pick up a different organism’s genetic material?

A: 4. A bacterium takes up a fragment of DNA circulating in its surroundings during transformation. A…

Q: 2. Dr. Kim at Ewha Research Center performed shotgun Sanger sequencing on ar unknown DNA sample, and…

A: This is sequence alignment which can be done by putting each fragment in such a way that it may…