Which one explains the form of genetic material before nuclear division? a) Euchromatin b) Heterochromatin c) Chromatin d) Chromosomes

Q: Bacterial DNA has how many origins of replication? A) 0 B) 1 C) 10 D) depends on the size of…

A: Two identical copies of a DNA molecule are produced by DNA replication. This is important for cell…

Q: In which direction does replication go?

A: DNA replication is  a semi-conservative type of replication where the two strands of DNA act as a…

Q: Which helps prevent errors in DNA replication? A) Complementary base pairing reduce errors B) DNA…

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

Q: Chromatin is composed ofa) DNAb) DNA and proteinsc) DNA, RNA and proteinsd) None

A: Chromatin is a mass of genetic material that condenses to form chromosomes. It is located in the…

Q: DNA replication always proceeds in only one direction because the ________ of the incoming…

A: DNA replication is an important part of the cell cycle and it takes place in the S-phase of the cell…

Q: Describe the process of DNA replication. What are the functions of DNA polymerase and DNA ligase?

A: The chromatin allows the replication machinery easy access to the strands of the DNA molecule.…

Q: In the image below, which arrow denotes the protein that forms the nested DNA loops in chromatin?…

A: Linker histones (H1 and its variations) or HMG proteins bind lengths of DNA that connect adjacent…

Q: What is nucleosome and chromatin?

A: The deoxyribonucleic acid is the genetic material that is passed from one generation to another…

Q: The pro Tien responsible for the initial step in unwinding the DNA helix during replication of the…

A: Answer is dnaA. The protein responsible for the initial step in unwinding the dna helix during…

Q: Which statement is true about a person's chromosomes? a) They are arranged in homologous groups of…

A: In humans, there are 23 pairs of chromosome in a cell, in which 22 pairs are autosome and 1 pair of…

Q: Some cells, like nerve cells, exit G1 to enter quiescent stage called a) G₁ O b) S O c) Ga d) G₂…

A: Cell division is a phenomenon in which parent cell splits and give rise to novel cells.  Number of…

Q: In DNA replication, there are leading and lagging strands because A) DNA replication is…

A: DNA replication is the process by which the genetic material of the cell is doubled which is then…

Q: 16. What is a cell that is not undergoing replication called? a) Inactivated b) Fallow c) Quiescent…

A: Since there are  multiple parts in the given question, hence, only first the first one is answered…

Q: What is the correct order of the stages of DNA synthesis? A) Unwinding the DNA, synthesis of a…

A: The manufacture of deoxyribonucleic acid (DNA) molecules, whether natural or artificial, is known as…

Q: How do we know that DNA replication occurs during interphase, not early in mitosis?

A: Introduction  A normal cell can divide by two process one is Mitotic cell division while the second…

Q: Distinguish between the number of chromatids eachchromosome contains before and after replication.

A: Introduction: Chromosome is a structure present in the nucleus of a cell and has two sister…

Q: Primer needed to initiate DNA replication is A) DNA segment B) RNA segment C) DNA-RNA hybrid D)…

A: INTRODUCTION Primers are short segment of RNA which act as a starting point for DNA replication.

Q: Which replication enzyme(s) is/are responsible for synthesizing new DNA components: A) Ligase B)…

A: In molecular biology, the biological method of creating two identical DNA replicas from one initial…

Q: What are the two major components of chromatin?

A: Chromatin is the thread-like structure that is again packed to formed to chromosome.

Q: 27) If the sequence TCGTA was used as a template in DNA replication, what would the sequence of…

A: Chromosome is a thread-like elongated structure that contains numerous genes on it. Genes act as…

Q: possible to model a DNA molecule as, a) electrically charged filament, b) elastic filament and c)

A: DNA is a molecule which is made up of nucleotides in fact polynucleotide. Are nucleotides made up of…

Q: a) Under normal conditions E. coli produces three DNA polymerases. State their functional…

A: E.coli bacteria are considered prokaryotes, and the prokaryotes exhibit three different types of DNA…

Q: How does DNA replicate itself?

A: The new daughter DNA strands are formed from template strands of DNA by a process called…

Q: The end of the chromosome in a prokaryotes A) is a telemore B) will get longer which each…

A: Prokaryotes are organisms that do not have a nucleus and membrane-bound organelles. These consists…

Q: Describe the four stages of DNA replication.

A: DNA replication is the process by which DNA makes a copy of itself during cell division.  The…

Q: In the diagram of replication shown here, fill in the blanks with the appropriate terms: (a) base…

A: Transmission of chromosomal DNA from generation to generation is crucial to cell propagation. This…

Q: Without the action of DNA ligase, cells would not be ableto complete their replication. What is the…

A: Answer is option c.) Binds DNA sequences together to generate acontinuous strand.

Q: (a) What is the function of helicase in DNA replication? (b) What is the function of DNA polymerase?…

A: DNA is called deoxyribonucleic acid. DNA act as genetic material in most organisms. DNA replication…

Q: The process of DNA replication is affected by an enzyme known as: (a) Mutase (b) Ligase (c)…

A: The process of replicating a double-stranded DNA molecule into two identical DNA molecules is known…

Q: Compare and contrast the relationship between chromatin andchromosomes.

A: The genetic material refers to the materials present in the nucleus, mitochondria, and cytoplasm,…

Q: What are the function of chromatin?

A: The cells are the basic building blocks of the living system. The internal structure of the cells…

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.