The purine nucleotide cycle produces fumarate, _____________, and _____________.

Q: Excess vitamin K in natural forms is not toxic, toxicity occurs with synthetic vitamin K called…

A: The vitamins are the essential nutrients which we get mostly from the food .

Q: Enzymes isolated from bacteria that cut DNA at specificsequences are called ____________________.

A: Enzymes are biological catalysts which enhance the rate of a reaction without being consumed or…

Q: Saturated fatty acids have _____________ double bonds.

A: Lipids are polymer. They are made up of monomer fatty acid and glycerol. Monomers are joined through…

Q: Adenine was added where Guanine should have been added, this would be an example of a…

A: Mutations are the changes in the DNA sequence of an organism which may or may not affect its…

Q: Aldehyde sugars are also referred to as _________________.

A: Sugars or carbohydrates are macromolecules that are essential in living beings. They are present in…

Q: A posttranslational modification that directs a polypeptide toa specific site is called a…

A: Post-translational (PTM) modification is considered as the process, in which protein undergoes…

Q: Chemical and Radiation Damage to DNA Can Lead to ____________.

A: Deoxyribonucleic acid (DNA) is a molecule made up of two polynucleotide chains that coil around each…

Q: is an irreversible competitive inhibitor of bacterial beta-lactamase. O rifampin O trimethoprim O…

A: Beta-Lactamases are the enzymes produced by bacteria that provide multi-resistance to beta-lactam…

Q: The biologically active form of a fatty acid is the thioester of____________________.

A: The simplest forms of lipids are called fatty acids. They contain even number of carbon atoms in…

Q: Hexokinase is an example of a general class of enzymeknown as the _____________________.

A: Hexokinase is an enzyme that phosphorylates hexoses forming hexose phosphate.

Q: The 5' carbon is where the nucleotide's own _____________ group attaches.

A: DNA  DNA is a genetic material that is composed of a sugar, a phosphate group and 4 different kinds…

Q: A/An________protein binds to the exposed end of a polymeric molecule preventing further…

A: ANSWER) Carrier protein A/An Carrier protein protein binds to the exposed end of a polymeric…

Q: Making cDNA from mRNA requires an enzyme called ____________________

A: Complementary DNA (cDNA) is created in molecular biology using an RNA template in a process that is…

Q: b-Hydroxybutyrate is a product of _________________metabolism.

A: When there is a very less amount of glucose is present in the body, then our body uses ketones in…

Q: In _____________ heterogeneity, mutations in one of two or moredifferent genes can cause the same…

A: What are genes? Genes are specific nucleotide sequences in the DNA which can direct the synthesis of…

Q: _____________ and _____________ are examples of heparan sulfate proteoglycans.

A: Proteoglycans are proteins which are heavily glycosylated with sugar moieties. Heparan sulfate is…

Q: When nitrogenous bases in single-stranded polynucleotides are incorporated into doublestranded…

A: DNA and RNA both absorb maximum light of 260 nm wavelength. 260 nm light comes in the ultraviolet…

Q: B.1.351 is a variant of SARS-CoV-2. It has the amino acid substitution N501Y in the spike protein on…

A: The aromatic amino acids like Tyrosine, tryptophan and phenylalanine absorb ultraviolet light. The…

Q: Okazaki fragments are found on the _____________ strand.

A: DNA replication is the process by which DNA synthesise its copy prior to cell division. The two…

Q: Adenine and guanine are examples of the_________________________ class of nitrogenous bases.

A: Introduction: The nitrogen bases act as the building blocks of the nucleic acids, deoxyribonucleic…

Q: _____________ is the precursor of bile acids.

A: Bile acids are steroid acids.

Q: DNA sequences in which multiple copies are arranged nextto each other are called…

A: Repetitive sequences are the DNA fragments that are present in multiple copies within a genome.…

Q: DNA _____________ are enzymes that prevent tangling of DNA strands during DNA replication.

A: Topoisomerases is a class of enzymes that reduce supercoiling in DNA by breaking and rejoining one…

Q: Amino acids that degrade, yielding acetyl-CoA or acetoacetylCoA, are referred to as…

A: The strategy of amino acid degradation is to transform the carbon skeletons into major metabolic…

Q: The amide linkages of proteins are referred to as________________________.

A: Introduction: Proteins are major biomolecules that consist of long chains of amino acids. The…

Q: DNA replication results in the creation of _____________ identical strands of DNA.

A: The consequence of DNA replication is two DNA molecules comprising of one new and one old chain of…

Q: A single strand of DNA runs from ___________ to ___________.

A: Every DNA strand has two closures. The 5' end of the DNA has the terminal phosphate group on the 5'…

Q: The genome’s functional gene products are either _____________ or _____________.

A: Genome is the total amount of genetic material that was present in the living organism which…

Q: Once replication begins, it will continue in both ______________ along the DNA strand.

A: Replication  Replication is the process of doubling of DNA molecules. In this, both strands of DNA…

Q: A posttranslational modification that directs a polypeptide to a specific location is called a…

A: Post-translational (PTM) modification is considered as the process, in which protein undergoes…

Q: The chemical bond involved between the nucleotides in a polynucleotide strand is a _____________ .

A: Nucleotides are involved in the formation of DNA and RNA. It consists of a five-carbon sugar, a…

Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.