Which type of mechanism best repairs thymidine dimers caused by exposure to UV light? a. Nucleotide excision repair b. Base excision repair c. Mismatch repair d. NHEJ

Q: Individuals with Turner’s syndrome inherit what chromosomes? a. XX b. XO c. XXY d. XXX   What is the…

A: Genetic disorders are those which can be inherited. These disorders are the results of changes in…

Q: A DNA antisense strand contains the following nucleotide base sequence: ACG TTT ATG GGT From this,…

A: Answer: Central Dogma : It is the complete process of replication of DNA,  transcription of DNA to…

Q: The BRCA genes produce DNA repair proteins. Genetic testing is available that can determine if a…

A: BRCA1 (BReast CAncer gene 1) and BRCA2 (BReast CAncer gene 2) are proteins that aid in the repair of…

Q: hat describes or designates the 3' end of a DNA strand?     a. an available hydroxyl group on the…

A: DNA is a double stranded helical structure.It is made up of nucleotides. Each nucleotide is composed…

Q: A DNA antisense strand contains the following nucleotide base sequence: CGA  TTT  GGT  TGA From…

A: A single-stranded RNA molecule that is corresponding to one of a gene's DNA strands is referred to…

Q: Which dna strand will be synthesized continuously during dna replication? a.The strand that is…

A:

Q: Cystic Fibrosis is caused by which of the following? a. Replacement of three nucleotides with a new…

A: Answer is Option c(Deletion of three nucleotides) and explaination is given in the following steps:…

Q: Which protein directs the recombination exchange with a DNA that has failed a complete DNA…

A: DNA unwinds and the two strands detach at the "replication origins" a little at a time, like a…

Q: Which of the following DNA repair systems may involve the removalof a segment of a DNA strand?a.…

A: Answer is b.)  Nucleotide excision repair.

Q: What is a reasonable length for an RNA primer in E.coli?   A. 1000 nucleotides     B. 100…

A: In DNA replication one strand of DNA which is lagging require RNA primer to start the synthesis of…

Q: 36. Which of the following motifs can be found in DNA-binding proteins? a.) helix-loop-helix b.)…

A: Proteins with DNA-binding domains, or DNA-binding enzymes, have a particular or universal attraction…

Q: What is the approximate diameter of double helix of DNA? A. 2000 pm B. 3400 pm C. 800 pm D.…

A: Detailed explanation: Option A is CORRECT. DNA molecule has a diameter of  2000 pm.diameter is the…

Q: What is the major role of DNA polymerase in the DNA replication?   a. Attached RNA primers to…

A: DNA is the hereditary or genetic material present in most of the living organisms. It is majorly…

Q: Which statement is true about RNA polymerase (which is required for transcription)? A. RNA…

A: Transcription  It is the process through which the sequences in strand of DNA forms into the…

Q: Cells exposed to ultraviolet light develop thymine dimersand visible light reverses this damage.…

A: Irradiation by the UV light causes pyrimidine dimers. The most common pyrimidine dimers formation is…

Q: Which type of mutation produces the same protein despite a change in the DNA? A. nonsense B.…

A: The mutation is defined as an alteration or change in the nucleotide sequence of the organism's…

Q: Which sequences are spliced out of the mRNA strand before leaving the nucleus?  In other words,…

A: Answer: TRANSCRIPTION : It is the process in central dogma where a DNA strand is transcribed in to…

Q: What term is used to describe the fact that the 5' end of one strand lines up with the 3' end of the…

A: DNA stands for deoxyribonucleic acid. It is a genetic material present in the cell.

Q: A DNA nucleotide triplet that codes for the amino acid alanine is a. CCA b. CGG C. CCU d. CGU

A: Introduction The molecule that carries the genetic information necessary for an organism's growth…

Q: What kind of mutation normally has no consequence? please explain the answer a.transversions…

A: Any change in the DNA sequence is considered as mutation. It can be large chromosomal aberration or…

Q: What is the use of Liquid soap in DNA extraction?*   A. binds cell membrane and nuclei B. dissolves…

A: DNA extraction is a process of extracting DNA from the cell for further experiments. It is a method…

Q: Read the images given before answering the question below. Identify the two common diseases that…

A: When any change occurs in the order of DNA sequence naturally or synthetically it is called…

Q: Why are mutations more likely to occur in repeated DNA sequences? a. These bases are unstable b.…

A: Repetitive DNA sequence Repetitive DNA refers to the stretches of DNA that repeat throughout the…

Q: The transcription factor that unwinds DNA to expose the template strand Group of answer choices

A: The conversion of DNA's genetic information into mRNA takes place by a process known as…

Q: Primers are synthesized where on the lagging strand? a. Only at the 5′ end of the newly synthesized…

A: DNA replication is the biological process that results in producing two identical replicas of the…

Q: Which enzyme adds RNA nucleotides to mark the starting point for the synthesis of a new DNA strand?…

A: Introduction :- Enzymes are biological catalysts that accelerate chemical reactions in living…

Q: Which molecule provides the energy for the assembly of new nucleotides into a DNA strand during DNA…

A: Nucleic acid are the biological macromolecules just like other macromolecule like proteins and…

Q: There is segment of double-stranded DNA that is found to have a total of 140 bases. If 45 of those…

A: DNA( deoxyribonucleic acid )  is two stranded ladder like structure which contain four bases :-…

Q: Plasmids are very important for recombinant DNA work.   3. What makes shuttle vectors special or…

A: The term vector refers to the DNA molecules that act as transporting vehicle which carries foreign…

Q: Which of the following strands of DNA (assuming it was bound to its complementary strand to create a…

A: The stability of the DNA double helix arises from the hydrogen bonding between complementary base…

Q: Write a short note on double strand break repair with emphasis on homologous recombination? Use…

A: Mutation:It can be defined as permanent heritable changes that occur in the DNA sequence and it can…

Q: During DNA replication, what is the very first process to occur?   a. synthesis of the lagging…

A: DNA is the genetic material of the cell. It stores and transfers genetic information across…

Q: What attracts or directs the synthesis enzyme to the template in DNA Replication?   a. Promoter…

A: DNA replication is the process by which DNA undergoes duplication.

Q: DNA polymerases have a shape resembling a right hand with three domains. Explain how these three…

A: DNA polymerase enzyme comprises multiple subunits that play a unique part during DNA synthesis. It…

Q: Which of the following complex compound is used in the treatment of cancer?A. Cis platin B.…

A: Cancer: An abnormal growth of cells which tend to proliferate in an uncontrolled way and, in some…

Q: Human beings with the inherited disease xeroderma pigmentosum have serious problems with lesions on…

A: Xeroderma pigmentosum is an inherited disease. It is characterized by an extreme sensitivity to…

Q: Which Class I element has likely experienced the greatest accumulation of mutations compared to its…

A: Transposable elements are the Jumping genes which are the mobile genetic material within the genome.…

Q: A DNA antisense strand contains the following nucleotide base sequence: ATC CAA GAC TGG From this,…

A: DNA refers to deoxyribonucleic acid. It is the genetic material of almost all organisms, except a…

Q: What repair system will have an issue functioning properly if DNA glycosylase loses its function?…

A: DNA repair is a process of repairing the spontaneous changes arising in the DNA. The genome…

Q: involved in the transfer of multiple drug resistance from one cell to another? * a.Transposition b.…

A: Multidrug resistance (MDR) is a condition in which the microbial cells exhibit resistance against at…

Q: Which proteins are responsible for the unwinding of the double-stranded DNA during  relication?…

A: DNA replication is a process in which DNA strands are copied into their complementary DNA strands.

Q: dentify the sites of lagging strand synthesis. Select all that are true. 5' D a. C 10 b. D c. B. O…

A: DNA replication is a biological process in which two identical replicas of DNA are produced from one…

Q: DNA polymerases that corrects errors and mismatches in DNA is called?   A. Post replication repair…

A: Although DNA replication is an extremely exact process, errors can occasionally happen, such as when…

Reproductive system infection

The biological process through which parents produce new children is called reproduction. A reproductive system is a group of internal and external organs that collaborate to allow males and females to reproduce. Many experts believe that the reproductive system is one of the most important systems in the body due to its crucial function in the survival of the species. Among the body's basic systems, the reproductive tract is the one that differs the most between sexes, and it is also the only one that does not operate until puberty.