DNA synthesis proceeds from right to left on one strand. 3. Template exposed Direction of synthesis Because two template strands are antiparallel. and DNA synthesis is always 5'3',. Replication fork Direction of synthesis Urwinding Template exposed 4.and from left to right on the other strand. DNA synthesis takes place in opposite directions on the two DNA template strands. DNA replication at a single replication fork begins when a double-stranded DNA molecule unwinds to provide two single-stranded templates.

Q: How is a codon related to a triplet?

A: Codon refers to the DNA and RNA nucleotides sequence that is specific to the amino acids and helps…

Q: Compare heterochromatin and euchromatin. What are the differences between them?

A: Deoxyribonucleic acid (DNA) in the eukaryotic cell nucleus present in a highly compacted fashion.…

Q: What type of bonding interaction causes stem-loops to form?

A: Stem loop is also known as hairpin loop structure. It is an intramolecular base pairing that…

Q: Why Heterochromatin spreads linearly?

A: Heterochromatin refers to the part of the chromosomal regions that appear dark due to the…

Q: Describe how cyclin-dependent kinases (Cdks) are regulated and explain how they help cells pass…

A: The cell cycle is the lifespan of the cell from the time it is formed until it divides into two…

Q: B. DIFFUSION OF SOLUTES ACROSS A SELECTIVELY PERMEABLE MEMBRANE Table 11-4. Presence of solutes in a…

A: Diffusion of solute is the process of movement of solute molecules from the region of high…

Q: What would be the modifier to add to this HCPCS code?

A: HCPCS Level II codes are a combination of alphabets and numerals assigned to medical services,…

Q: What are cassette exons ?

A: An exon is the portion of a gene that codes for amino acids. In the cells of plants and animals,…

Q: What are some examples of facultative heterochromatin?

A: Facultative heterochromatin is a type of chromatin that can be switched between a condensed,…

Q: Do any strands of nucleic acid exist in nature in which part of the strand is DNA and another part…

A: DNA RNA hybrid is a formed when one strand is DNA and another strand is RNA. In DNA Thymine is…

Q: Distinguish between leading and lagging strands.

A: During the method of DNA replication, the double-stranded molecule of DNA replicates to form…

Q: The finest passages through which electrical signals pass before reaching the ventricular…

A: Introduction: The muscle of heart is composed of small cells through which electrical signals are…

Q: What is the complementary strand of TTGACAGTAAAA?

A: Deoxyribonucleic acid (DNA) consists of two polynucleotide chains which are held together by…

Q: What two properties, one structural and one functional,distinguish heterochromatin from euchromatin?

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: Euchromatin is said to be transcriptionally-active while Heterochromatin is said to be…

A: Euchromatin exists in decondensed form and is found in the distal arms of the chromosome. It is…

Q: Explain the strand elongation stage?

A: Transcription is the first stage in gene expression. In this process, the sequence of DNA of a gene…

Q: What is the Evidence for a triplet code?

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

Q: What are repetitive sequences ?

A: DNA( deoxyribonucleic acid) is the double-stranded molecule that is the genetic material in most…

Q: When looking at a double helix what are the names of the different grouves?

A: Double helix is a structure in which two helical structures are wind over each other. For examples,…

Q: Draw the structures of an I ∙ C wobble pair and an I ∙ U wobble pair.

A: A wobble base pair is a pairing between two nucleotides in RNA molecules that does not follow…

Q: Differentiate between lagging strand and leading strand.

A: The first step in the central dogma is DNA replication, in which the DNA strands are recreated to…

Q: What is the difference between facultative and constitutive heterochromatin?

A: The chromosomes are thread like structure that carries hereditary information in the form of genes.…

Q: What are Centromere Sequences?

A: According to the question we have to give the information related to Centromere Sequences. So, let…

Q: What is histone ocatmer?

A: The histones are highly basic proteins present in eukaryotic cells nuclei. It packs and order the…

Q: In mismatch repair, how does the cell "know" which strand is the correct strand and which strand is…

A: During DNA synthesis,  DNA polymerases keep checking their work and keep fixing the majority of…

Q: How many nucleosomes form the “width” of the 300 Angstrom fiber, in chromatin packaging?

A: Each chromosome consists of a single, enormously long linear DNA molecule associated with…

Q: What is the function of euchromatin?

A: The chromatin is the complex formed by the condensation of DNA and histone proteins. Chromatin…

Q: What are helicases and topoisomerases?

A: Enzymes are the proteins present in the cells and have catalytic powers.

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.