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: 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: 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 some examples of facultative heterochromatin?

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

Q: What is the complementary strand of TTGACAGTAAAA?

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

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: 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: 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: 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…

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.