Question

In DNA replication, what is the primer composed of and why
are there leading and lagging strands?

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Biology

Genetics

Related Biology Q&A

Find answers to questions asked by students like you.

Q: This pathogen is usuall foodborne and causes a mostly asymptomic disease. The most common foods asso...

A: There are many pathogens which causes infections in the human body. Food borne infections are genera...

Q: Draw a well labelled diagram of organ of cortii.

A: The Organ of Corti is an organ of the inner ear located within the cochlea which contributes to audi...

Q: Can we identify general featurescommon to all cancer cells—such astheir production of misfolded, mut...

A: Cancer can be of different types depending upon the type of cells, organ affected, and stage. The sp...

Q: Crystal violet is an example of what type of stain?

A: A stain is used to clearly view a specimen under the microscope. For staining, a smear of the microb...

Q: Which part of brain controls all voluntary actions?

A: The central organ of the nervous system in humans is the brain which is contained in the protective ...

Q: Describe the properties of emerging viruses.

A: A virus is a very small submicroscopic agent that is known for causing infections in its host organi...

Q: Relate how Mendel’s experimental approach is similar to the process of modern scientific inquiry.

A: Gregor Mendel was a scientist who worked in the field of molecular biology and genetics. These field...

Q: Gas flow decreases as ________ increases.a. resistanceb. pressurec. airway diameter

A: The respiratory system is the organ system that is responsible for the exchange of gases between the...

Q: Differntiate between dianoflagellates and eulenoids?

A: R.H. Whittaker proposed a five-kingdom classification in which Protista is a kingdom which comprises...

Q: Which of the following conventions is used to specify the sequence of bases in DNA a) The sequence b...

A: A deoxyribonucleotide of DNA is formed by crosslinking orthophosphoric acid, deoxyribose sugar and a...

Q: ybrid dysgenesis results when a. a male fly with P elements (P+) mates with a female fly that lacks ...

A: Transposable genetic elements also known as transposons are jumping genes. They are called so becaus...

Q: How can activity of a hemolytic exotoxin be detected?

A: Introduction  Toxins can be of two type on the basis of their secretion viz. Endotoxins and Exotoxin...

Q: Certain repeated sequences in eukaryotes are flanked by short direct repeats, suggesting that they o...

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

Q: Which statement best describes why antimicrobial drugs that affect cell wall synthesis tend to have ...

A: Antimicrobial drugs are the class of drugs that are used to treat a microbial infection. They suppre...

Q: What is a dimorphic fungus?

A: Organisms belonging to the kingdom Fungi are heterotrophic and have chitin cell walls. Being a heter...

Q: Give the difference between frog and shark regarding the spinal cord?

A: The brain and the spinal cord make up the central nervous system. The spinal cord extends from the b...

Q: Describe in detail the exotoxin and endotoxin with examples and diagrams.

A: Many pathogenic microorganisms secrete different types of substances that contribute to their succes...

Q: If an enzyme in field-grown soybean leaves is most activeat noon and least active at midnight, is it...

A: The circadian rhythm in plants functions as the plant synchronises itself to the periodic light and ...

Q: How many sacral vertebrae occur in Uromastix?

A: The sacral vertebra or sacral spine (S1), is a large, flat triangular shaped bone nested between the...

Q: Examine the male and female pelves. Look formajor differences between them. Noteespecially the flare...

A: The male and female anatomy is suited for the corresponding functions. The pelvis is the region, whi...

Q: How mitosis differs in animal and plant cells?

A: Cell division is a process by which a parental cell gives rise to two or more cells. Cell division i...

Q: Reproduction in marine pelagic fishes and in benthic freshwater fishes is distinctively different. H...

A: INTRODUCTION: Freshwater fishes and marine fishes reproduce distinctively as they both live in diffe...

Q: Differentiate between stomatal and lenticular transpiration.

A: Plants perform several physiological processes through leaves and stems. Transpiration can occur thr...

Q: Many beautiful varieties of roses have been produced, particularlyin the last few decades. These new...

A: Horticulture basically refers to the agriculture of food, materials, comfort, and beauty for decorat...

Q: Describe a typical vertebra of frog and show how other vertebrae differ from it ?

A: The vertebral column of frog is known for its extreme shortness because of its inflexibility and the...

Q: In a trisomic individual, such as a person with trisomy 21 (Down syndrome), a genetic imbalance occu...

A: Down’s syndrome or Trisomy of the 21st chromosome is the genetic abnormality that occurs due to the ...

Q: What are the antigen-presenting cells of theimmune system?

A: The immune cells are the defense cells that protect the body from invaders. The cells of the immune ...

Q: Pick any example of a genetic technology and describe how it hasdirectly affected your life

A: Genetic technology has many applications in our daily life. There are many procedures that are used ...

Q: What are secondary roots?In origin how secondary rootsdifferentiate from shoots?

A: Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes of the kingdom Pl...

Q: Why is the repression of genes by DNA methylation long-term?

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of...

Q: What do paleontological studies show about the relationship be-tween the geographic range of a speci...

A: Paleontological studies provide history about life present on earth. This study depends on the fossi...

Q: How is RNA interference used in the analysis of gene function?

A: RNA interference is a method in recombinant DNA technology which includes the post-transcriptional s...

Q: Describe the differences in translation initiation between prokaryotes and eukaryotes.

A: Translation is the process of synthesis of the peptide chain through specific codons present on the ...

Q: What are the morphological, chemical and functional similarities anddifferences between lysosomes an...

A: Cell is the basic unit of life containing several cell organelles that have distinct role in cellula...

Q: Most antihelminthic drugs function bya. weakening the worms so they can be flushed out by the intest...

A: Helminthes are worm-like parasites that survive by feeding on the living host for gaining nourishmen...

Q: Describe the key features of the Watson-Crick model for DNA structure?

A: Genetics is a branch of biology that deals with the study of genes, genetic variation, and heredity ...

Q: In this chapter, we considered a computer program that translates aDNA sequence into a polypeptide s...

A: Translation is a process in which the conversion of DNA sequence into amino acid sequence takes plac...

Q: List the steps in mRNA formation that occur in eukaryotes but not in prokaryotes

A: mRNA, messenger RNA is a single stranded genetic material, which transfers the genetic material from...

Q: How are gametes formedin the pteridophyte life cycle,by mitosis or meiosis? What isthe type of meios...

A: Pteridophytes belongs to the category of vascular plants as it contains both, xylem and phloem.  See...

Q: What happens to placenta after the birth of the baby?

A: The process of physical expulsion of the fetus and placenta from the uterus is called labor or partu...

Q: Explain what form carbohydrates are absorbed as in the intestinal lumen into the epithelial cell and...

A:   The digestion of carbohydrates involves the breakdown of complex forms of carbohydrates such as di...

Q: When glucocorticoids are prescribed using “twice a day” dosing, the doses should be divided in the f...

A: Glucocorticoids are corticosteroids, which are a class of steroid hormones. Glucocorticoids are powe...

Q: What result can a lake give which is rich in organic waste?

A: Organic waste is any material that is biodegradable and comes from a plant or an animal. Biodegradab...

Q: What kind of things are able to cause genetic mutations?

A: Mutations arise due to permanent alterations occurred in the genotypes of organisms which cause sudd...

Q: In humans, the number of chromosomes per set equals 23. Eventhough the following conditions are leth...

A: Chromosomes are the thread like structures which contains packed DNA present inside the nucleus of a...

Q: List the seven characteristics of pea plants that Mendelchose to study

A: Gregor Johann Mendel was an Augustinian monk. He worked on garden pea for the genetic experiment and...

Q: Give reason why a closed can containing dried seeds bursts open, if some water enters it accidentall...

A: Fertilization of male and female gamete takes place inside the ovary. After the formation of zygote ...

Q: Joe is studying for ANP.  He is relaxed and resting.  He just ate a big meal, so his digestive organ...

A: The digestion and absorption of the food predominantly take place in the intestine. A major part of ...

Q: MAKE CONNECTIONS The restriction site for an enzymecalled PvuI is the following sequence:5’-CGATCG-3...

A: The enzyme that recognizes the specific and short sequence of nucleotides and cut at that site is ca...

Q: Yellow marrow has been identified as ________.a. an area of fat storageb. a point of attachment for ...

A: "Bone marrow" refers to the spongy tissue in the long bones and contains stem cells. These stem cell...